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@Take me there Brownells Brn-605 Upper Receiver Complete 5.56 - Brn-605 Upper Receiver 5.56mm 1-12 Twist 15.5"-Brownells
Brownells Brn-605 Upper Receiver Complete 5.56 - Brn-605 Upper Receiver 5.56mm 1-12 Twist 15.5

Brownells Brn-605 Upper Receiver Complete 5.56 - Brn-605 Upper Receiver 5.56mm 1-12 Twist 15.5"

You can easily build your own replica of the very first M16 carbine, or create a truly unique custom build, with the Brownells BRN-605 Complete Upper Receiver Assembly. In the history books, the XM177E2 carbine gets all the attention as an early effort at producing a compact variant of the M16 rifle. But it was not the first! That distinction goes to the Colt Model 605. The 605 is basically a standard M16 with 4.5" lopped off the end of the A1 barrel. Why only 4.5"? Because they retained the rifle-length gas tube! Like the original, our BRN-605 upper assembly is built around our standard M16A1 upper receiver, with a 15.5" A1 profile barrel capped by the stand Mfg: Brownells


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Brownells Xbrn16e1 Upper Receiver Complete 5.56 - Xbrn16e1 Upper Receiver 5.56mm 1-12 Twist 20

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