Quick view Details C Products | sku: 4036 C Products 9mm MagWell Block MSRP: Now: $98.00 Out of stock Compare Quick view Details Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block MSRP: Now: $200.00 Out of stock Compare Quick view Details Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block MSRP: Now: $200.00 Out of stock Compare Quick view Details Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block MSRP: Now: $175.00 Add to Cart Compare Quick view Details ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Details Rock River Arms | sku: 4030 RRA 9mm MagWell Block MSRP: Now: $155.00 Add to Cart Compare Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Details Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block MSRP: Now: $200.00 Out of stock Compare Quick view Details Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block MSRP: Now: $200.00 Out of stock Compare Quick view Details Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block MSRP: Now: $175.00 Add to Cart Compare Quick view Details ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Details Rock River Arms | sku: 4030 RRA 9mm MagWell Block MSRP: Now: $155.00 Add to Cart Compare Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Details Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block MSRP: Now: $200.00 Out of stock Compare Quick view Details Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block MSRP: Now: $175.00 Add to Cart Compare Quick view Details ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Details Rock River Arms | sku: 4030 RRA 9mm MagWell Block MSRP: Now: $155.00 Add to Cart Compare Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Details Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block MSRP: Now: $175.00 Add to Cart Compare Quick view Details ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Details Rock River Arms | sku: 4030 RRA 9mm MagWell Block MSRP: Now: $155.00 Add to Cart Compare Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Details ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Details Rock River Arms | sku: 4030 RRA 9mm MagWell Block MSRP: Now: $155.00 Add to Cart Compare Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Details Rock River Arms | sku: 4030 RRA 9mm MagWell Block MSRP: Now: $155.00 Add to Cart Compare Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view C Products | sku: 4036 C Products 9mm MagWell Block This polymer magazine adapter drops into an AR-15 lower receiver and allows the use of 9mm C-Products magazines with 9mm Luger AR-15 upper receivers. This adapter installs from the top of the lower receiver and allows the standard magazine catch to be... MSRP: Now: $98.00 Out of stock Compare Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Hahn Precision | sku: 4033 Hahn Precision Bottom 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt type magazines and frequently changing between calibers that... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Hahn Precision | sku: 4032 Hahn Precision Dedicated 9mm MagWell Block Designed for the professional with a dedicated 9mm weapon system. The standard 5.56mm bolt hold open is utilized because of its superior strength over the 9mm version. The adapter can only be removed at the Armorer's level once installed. Holds open on... MSRP: Now: $200.00 Out of stock Compare Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view Hahn Precision | sku: 4034 Hahn Precision Top MagWell Block Adapter drops into the top of the receiver and virtually impossible to remove unless the upper receiver is opened. Ideal for users using Uzi and Colt type magazines not concerned with having the bolt hold open feature. Uzi magazines require modification... MSRP: Now: $175.00 Add to Cart Compare Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected × OK
Quick view ProMag | sku: 4038 ProMag Quick Change 9mm Magwell Adapter Block Colt Style Compatible This is ProMag's 9mm Magazine Adaptor Block. It easily installs in AR-15 lower-receivers and allows the use of 9mm Colt SMG in Colt pattern 9mm upper-receivers. The block is constructed of high a strength polymer with steel... MSRP: $71.49 Now: $53.00 Out of stock Compare Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected
Quick view Rock River Arms | sku: 4030 RRA 9mm MagWell Block Designed for quick caliber change between 5.56mm and 9mm with minimal effort. Adapter loads in from the bottom of the magazine well and secures with a tension device. Ideal for users using Colt magazines and frequently changing between calibers that... MSRP: Now: $155.00 Add to Cart Compare Compare Selected