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opinions on AR-9 platforms please
mohawk600
Member Posts: 5,527 ✭✭✭✭
Any of you guys shoot 9mm in an AR platform? and what are your thoughts?
Comments
no to first question, as per thoughts, kinda wondering if I have to pee or not...........
Opinion: A good alternative for plinking and not bad alternative for home defense vs a 5.56/.223 AR.
Background: I have 3-4 of the 9mm uppers in barrel lengths from 7.5" to 10". All are suitable for close range use and really push the envelope of 9mm capabilities w/o going to a full length carbine.
Using the heavier 147-150 grain bullets really brings out the advantages of the 8-10" barrels. Even those factory loads listed as 'sub-sonic' are at or above super sonic levels giving the 9mm a step up on the performance ladder. Although these bullets start slower, they don't lose much velocity even @ 100 yards.
The only downside is keeping bullets sub-sonic for suppressor use requires careful testing and/or handloading.
Make sure you're using the proper buffer. If using a magazine well adaptor, make sure you understand it's function as some will/may fall out if the normal AR mag catch is used.
FWIW, LRBHO(last round bolt hold open) features don't always work with all combinations of upper & lower so function testing is vital for this option. Also note that light pull triggers may result in 'bump fire' scenarios due to the heavy buffer slamming forward. Also note that it is not safe to leave the bolt locked open with a loaded mag in place as even a slight bump on the butt is often enough to disengage the bolt catch resulting in a round being chambered as the bolt slams forward.
I like em. I built a PSA 16" 9mm I shoot all the time. Quiet enough you don't need ear plugs and just fun to shoot.
Had a few. Upgraded to a PC 40 Ruger. The .40 cal out of a carbine is like shooting a 10mm handgun
I built one about 10 years ago. One of my favorite rifles for plinking and I am comfortable with using it for a house gun.
Not 9 but looking at the 6mm arc.
AR just don’t look correct with a glock magazine.
😁
But it looks good with a Colt Mag !!😁
All of my experience has been with Colt AR6450 guns. Ran them as range guns for over 15 years with all kinds of shooters and all kinds of factory ammo. They are blow back guns and get dirty, but they will run dirty. I cannot remember ever having any trouble with one. We would clean them when we had time, but it was never a priority. Like our rental Glocks, they would run and run without much care. I had a round count on our rental guns but tossed it when the store was sold. Those little 9mm rifles shot tens of thousands of rounds. I own one and a bunch of mags, 20 and 32 round. If you don't want a 12 ga. for housework, the 9mm carbine, loaded properly, would be a great choice in my humble opinion. Very easy to shoot well, lightweight, no recoil.
PSA: fun to shoot, easy to suppress, and easy on the wallet. I went with the 8 inch barrel:
It feeds and fires every load I've tried, including subsonic, which as @Mobuck mentioned, don't always remain subsonic in an SBR/pistol, or a carbine.