Originally Posted by mtdawg169 Details or link to info on the BRT barrel? Sent from my SM-G920V using Tapatalk https://www.ecwid.com/store/blackriv...tegory=1852006
https://www.m4carbine.net/showthread...08#post2395208
Black River Tactical BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16" BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE BRT Bolt Carrier Groups M4A1, M16 CHROME BRT Covert Comps 5.56, 6X, 7.62
Originally Posted by HelloLarry That has zero effect on accuracy, life or function. This is 100% correct.
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