Caution with your purchase - 2A Armament AR15 Titanium Regulated Bolt Carrier Group

I bought this BCG due to the description and reputation of the company. I researched on the internet the pros and cons and only found 2 youtube videos unfortunately. The build seems great and the gas system seems fine. The biggest problem is this BCG NOT working well with 3rd party Upper receivers, especially skeletonized builds. I tried it with the following upper receivers that include Iron City Rifle Works berserker(skeletonized), War Dogs Industries (skeletonized), Anderson Manufacturing, and Aero Precision mil spec upper. Did NOT function properly. The BCG would get “caught” in the upper walls. It shot best with the Aero Precision but would fail by not going forward all the way around 20 rounds. The skeletonized uppers would cause this BCG to fail by going forward all the way at around 10 rounds. This was shot on a 300 blk and 556 rifle. When both rifles were shot with Phase 5 mil spec BCG and Rubber City Armory 6oz BCG, it shot like a champ. I investigated The 2A Armament website and in small and hard to locate writing, it does state it may not work on 3rd party Uppers and Skeletonized. Hope this info helps