mark_y

Sounds like the full mass bolt carrier it will be. I still haven't heard back from slr rifles about the adj gas block clearance, i left 2 messages. The upper and handguard should arrive in a few days, so maybe I can figure it out before ordering the gas block. Thanks for the replies, Mark

I do enjoy punching paper, but I also hunt. I do not want to tune for every different load I shoot. I want a general setting that will not change much, or at all, once set. I am looking for an accurate rifle. I am not recoil sensitive, this will be one of my lightest recoil rifles, just looking for performance. I will be the 1st to admit that I only know what I have read about building an AR style rifle and that is limited. Most of my guns are bolt and lever action other than the ar-15s and 1 AR-308 that i own. When I look at a gun, i am not looking for a single purpose weapon, but one that i can grab for a hunt or target shooting. Thanks again for the help

Left a message with SLR and will wait for a callback about the clearance. I was thinking that an adj gas block would be better for the rifle to not have more blowback than necessary. The bolt carriers that I am looking at are JP carriers., low mass vs full mass. I am not a competition shooter, just want the most accurate that i can build in an AR308 platform. I am also considering the JP silent buffer spring assy, but I will probably have to wait to upgrade the buffer spring. If the consensus is to go with a full mass carrier, then that is probably what I will do. I am looking for advise from those most likely a lot more knowledgeble than myself. Thanks for the help.

Sorry, it took awhile to get back to the forum. The Aero inside dimension of the handguard is 1.8 in, according to their website. This build will probably take a while due to Christmas coming up, lots of kids to buy for! I would like to be able to adj. gas if possible, but the handguard coming is 15". I currently have a standard ar10 rifle size buffer tube and spring. The 2 things than I really need to decide on is a low mass carrier vs full mass carrier and whether or not i can make a SLR adj. .875 gas block work with this setup. If i have to mill out the hand guard slightly, how much clearance is needed between the barrel and hand guard?

Yes, this is my 1st build. I own a couple Ar-15s and 1 Adams arms 308 but have never built one. Gathering parts now and was looking at the pri adj. Gas block, but description says it doesn't fit under most hand guards. Don't know about the Aero hand guard fit. Hence the request for sugestions. Credit card info? Thats a good one!7

I have been waiting to order a M308 build kit from aero, when back in stock, but I have a question about the gas block. I have a 22" Criterion barrel in 6.5 Creedmoor and I also bought a headspaced JP enhanced bolt from Criterion. I want to use an adjustable gas block, but the size required is .875. Does anyone make one that will fit under a 15" Aero keymod handguard? Also trying to decide between a jp lmos carrier or a jp full mass carrier. I think if I use a low mass carrier it might be good to be able to adj. the gas. Opinions?