AR-15 Rifle build parts, where to start

[MarkCO]

Irving, if the seal is made and the torque level required is not quite enough, then staking can keep it operating for a long useful life. If the torque level is much too low, then the stress riser from staking can cause fracture and result in a loose key, and leakage, with a bolt head that looks okay. There are a LOT of sloppy and counterfeit parts out on the market over the last few years, so buyer beware is good advice on carriers and bolts as well. A gas key that is properly sealed and torqued, and then properly staked, sure, there is not a thing wrong with it and boots and suspenders is not bad at all.

ray1970,