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thanks for the info im currently saving up for the brn 4 right now, you've pretty much done videos on every gun/part i've wanted to buy in the last few years!
How many rounds before failure?
Probably like tree fiddy
@@ModernRifleman Interesting. I just had one of mine fail at about the 400 mark.Completely seized the piston in the block.
@@richardemango Damn. I bought a BRN 4 upper but haven't had a chance to shoot it yet. I'll probably get an HK MR556 piston and see how it goes.
thanks for the info im currently saving up for the brn 4 right now, you've pretty much done videos on every gun/part i've wanted to buy in the last few years!
How many rounds before failure?
Probably like tree fiddy
@@ModernRifleman Interesting. I just had one of mine fail at about the 400 mark.Completely seized the piston in the block.
@@richardemango Damn. I bought a BRN 4 upper but haven't had a chance to shoot it yet. I'll probably get an HK MR556 piston and see how it goes.