upper receiver

Hello! I recently received a 7.62 AR upper receiver. It's a nice one but it's clearly been sitting forever as there is a layer of rust aaaaall down the bore. It's a nice thick coating. I have a 30 cal brass brush and hoppes, but I was just wondering if I could soak it in white vinegar for a...

Hello! I put together a 762 AR. I am about to put a foregrip on but I also like to shoot holding right where the barrel touches the lower receiver, not quite touching the magazine. However, there are a couple of bolts right where I place my hand and it can be uncomfortable when I hold it there...

Hey guys, I just bought a brand new BCM RECCE 14 and noticed slight movement between the upper and lower receiver. I never noticed it before until today. I haven’t even shot the gun yet. Is this ok? I also have a RECCE 16 that has absolutely no movement at all. Thanks

Hey guys I have a BCM upper receiver and I am trying to install a Ballistic Advantage barrel. I am well aware BCM receivers are known for being super tight. Knowing this I greased up the interior of the receiver and the outside of the barrel extension. The barrel wouldn't go into the receiver...

I got one of those palmetto state armory 16 inch uppers with parts kit for $260. The lower is a ruger, not home made plastic or 80%. The optic is a leopold cqt mark 4. I take it out to get it on paper at 25yd with M193 type ammo. First thing I notice is its shooting nearly 2 inch groups at 25...

hey guys Anybody have experience with CBC industries? Looking to order an upper from them to build as a budget AR, as I’ve spent over 2k each on the last few builds I’ve done. Time to take it easy lol. I’ve seen good and not so good reviews online about these guys and I want to see if anyone...