First AR advice

Fyn

CGN Regular
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Location
Strathroy, ON
Hey guys, this might be sort of a redundant question, but on the plus side it doesn't invole slide fire stocks or the best cheapest non-restricted black rifle :eek: lol. I've decided to build an AR slowly, mainly because it's easier for me to spend a little periodically, and plus I like to tinker with everything I own so I'm sure I will appreciate the build. It will be my first AR. So far I've ordered an Aero lower, just to get the ball rolling. I'm looking to go build something fairly high quality, but slightly budget concious, if I had to break it down, I would say I can;t afford a Noveske, but I don't want a Norc (nothing personally against Norc). It's just going to be a fun range gun, I would just like something with a nice fit and finish, respectable accuracy, and reliable obviously. I'll most likely go with an Aero upper as well, and the general consensus seems to be they are great products for the money (unless someone wants to tell me otherwise). Any thoughts on barrel manufacturers? I was thinking an SJ Hardware as I've always been happy with their other products and service, and price, but again, open to suggestions.

I'm kind of stuck on a length. For my first AR project, is there a length you guys would recommend, or recommend against? I've always had a chub for PDW pic thread, and I tend to like the look of the 10.5/11.5 carbine lengths as well. My general thinking is, if it's going to restricted anyway, might as well keep it short. But that being said, I am aware of velocity loss and signature the shorter barrels produce. The 11.5" seems like a good compromise? I know some people say the shorter bbl's may be harder to get running properly, but it seems that is usually solved by purchasing the correct parts from the start. Again, completely open to ideas, opnion, and experiences!

Any preference to LPK's? Seems to be alot of DPMS kits in stock at various retailers.
 
You should tell the folks what distances you want to shoot with "respectable accuracy". ...and what is "respectable" to you?
 
Agreed, thank you for pointing that out. I guess it's all relative, I'm not expecting it to compete with my bolt actions, but I would like something 2 MOA if that is realistic? I've owned a mini-14 (generally around 2.5-3MOA, best was a 1.9" w/ V-Max), m14's (3-4", however I haven't got a chance to test my Doc tuned shorty yet), cz858 (mostly just plinked, probably 4-5MOA with surplus), 7615p (1.5-2", multiple groups closer to 1.25" though), sks (3MOA), etc. If I could get similar realistic and repeatable accuracy to the 7615p (1.5-2MOA) I would be quite happy. I know many other members seem to mention 1MOA groups, I tend to take things on this site with a grain of salt, however I'm sure it's entirely possible. Shooting a maximum distance of 200 yards, mostly 100 yards, sometimes 25-50.
 
For a gun spitting 55 gr 5.56 I see no great advantage in a barrel beyond 16''. However, I personally wouldn't get anything lower than a 14.5''. The CQB barrels and their gas systems are exposed to a lot of stress and won't last as long / be as reliable as rifles with longer barrels and longer gas tubes.

If you're going to build a 10.5'' or a 11.5'' carbine, be sure not to crap out on high quality parts because they are going to take a pounding.

I've owned 14.5'', 16.1'', and 20'' AR's and I have been happiest with the 14.5''. If I ever get another 16.1'' gun, I will definitely take a serious look at the mid-length gas systems too.

This is the accuracy I can squeeze out of my 14.5'' carbine @ 100 meters with 5 shot groups with my hand loads.

20121020_175120.jpg
 
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