Couple of quick questions that I'm sure a lot of you can answer:
I just got a new AR-15 BCG, and the bolt seems awfully tight in the carrier. If I stand it on the bolt, the carrier isn't close to sliding down. I've checked for burrs or ridges, but it all looks OK. Is this normal for a new, never fired BCG? My other (WELL-used) BCGs are much looser, and the carrier slides easily if you stand it upright on the bolt. It's been so long since I had a brand new one that I honestly don't remember.
Secondly, I've got a different upper that has an unmarked FSB on it. My others are F marked. What different bases are there, and is there an obvious difference?
I just got a new AR-15 BCG, and the bolt seems awfully tight in the carrier. If I stand it on the bolt, the carrier isn't close to sliding down. I've checked for burrs or ridges, but it all looks OK. Is this normal for a new, never fired BCG? My other (WELL-used) BCGs are much looser, and the carrier slides easily if you stand it upright on the bolt. It's been so long since I had a brand new one that I honestly don't remember.
Secondly, I've got a different upper that has an unmarked FSB on it. My others are F marked. What different bases are there, and is there an obvious difference?