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I use them on Rifles, PCR's, PCC's and a handgun. Most of my stuff has ASR brakes now but I still use these on some guns. KVP make a great blast can that can fit on their ASR brakes giving me the ability to still have a good linear comp and to swtich to the suppressor when i want.
Worthless trash. This thing never even saw the range before it died. It started to get a scatterd light glow then, it wouldn't function properly and now it wont turn on at all. That all happened after having it for two weeks. Yeah it turned on the first time but the 2nd time two weeks later the 2nd day of 'use' is when it broke.I'll never buy anything from AT3 again.
I have not finished mny build yet but upon inspection the extnesion and feed ramp looks good, so did the rifling and everything else. I've gotten bad barrels before and this has none of thsoe signs. It will work in a standard upper. I will update rreview once I get my build finished.
So it will not work in a standard AR upper. It is also NOT meant for a 308/AR-10 upper. Just trying to clear things up for others. There are other 350L barrels that are not big bore extensions yet still have a single feed ramp - and these will work in your standard upper.
Junk sat in the box for a while. Before I could get to the range with the weapon it was installed on it started malfunctioning. Have to push button 50 times and maybe it will turn on; even when off there is a red glow around the edges. Save your money.