2021年7月14日 · I don't have the PTR versions of those guns but I do have an HK51 built off an FMP XG3S receiver and a G3K built off an HK91 receiver. The G3K (12" barrel) variant is …

2018年3月28日 · I have a K3P (G3K copy); slightly longer barrel but still by PTR. I'm running into barrel shoulder and thread/bore concentricity issues, so be aware...be very thorough when …

2017年12月29日 · Due to the barrel length difference (51 running an ~9" barrel vs. a ~18" on a 91) the receiver based cocking tube is also correspondingly shortened as well, with the 51 …

2021年7月14日 · I don't have the PTR versions of those guns but I do have an HK51 built off an FMP XG3S receiver and a G3K built off an HK91 receiver. The G3K (12" barrel) variant is …

2017年3月1日 · Checking your bolt gap (what they're referring to by "rollers") is independent of suppressing your PTR. With HK roller-locks, the angle of the locking piece relates to how …

2016年8月25日 · I called PTR and followed their recommended break in procedure; they also recommended that I use .308 ammo for the first 50 rounds as it is loaded hotter than the …

2025年2月22日 · Galils, G-3, Vector or PTR 51, Browning A-5. ... Haitian troops had some PDW-style PTR rifles in their ...

2015年3月1日 · Quoted: Efile, wait 30 days, engrave, receive stamp, push out two pins, slide on new stock, put two pins back in. Shoot new SBR.

Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.

2018年5月10日 · Ok ill explain it, the suppressor adds to the length of the barrel. the system is timed to open at the stock length. when you add another 10+ inches to the barrel it wont have …