Product Description
Standard Carbine Length Buffer Spring. Works with 223 or 9mm. (9mm Still Requires a Heavy Buffer)
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yep
Works great and received it fast no complaints
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Excellent
Very nice spring. Using it with the RRA 9mm buffer.
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Great spring
Using this spring in a AR9 build and it works great with the Spike's Tactical ST-9X.
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Quality Product
Combined with the heavy buffer, this spring makes my 9mm build function smoothly.
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It works
I'm using it with the ST-9x sold here also