My AR Assembly

[JJ]

Just slapped this little toy together yesterday. I have not gotten a chance to give her a run as I had range clean-up today. I supposed I will function test it tomorrow before lunch with the family.






Details:
Surplus Ammo&Arms Lower (manufactured by Aero Precision, same maker as Spike's)
Spikes LPK with Battle Trigger, and KnS anti rotation pins
Spikes Pustol Buffer w/ST2 buffer
DTI upper assembled by JSE Surplus
DPMS Vented Carbine handguard.
7.5" DTI barrel. 1-9 air gauged, A2 (to be replaced with a Flaming Pig)
24" OAL

After I make sure she will run a couple rounds without short cycling, I am gonna throw my Weaver T36 w/ 1/8moa target dot on it to see how well she will group at 100 If all goes well, this will be my solution to deer hunting in a slug zone.

[Rotary12]

Nice. Lets wee the targets after you get a chance to shake it out.

[operator4]

Awesome!

[BC98]

Nice. Do you have any plans to SBR your lower?

[JJ]

Nice. Do you have any plans to SBR your lower?

I have another stripped lower that will be getting the SBR tax stamp. Just have to get around to filing. I have a couple other toys that need to be paid for first

I need a cheap azz red-dot for now, I have a Weaver on order thru work, but need something until I see that. I guess I have to buy a throwaway

[davehk]

Nice build... If you don't mind sharing, how much was the build cost?

[forcefed]

I have a cheap red dot for you big fella. I like it, I think I am going to have to build one now

[JJ]

Nice build... If you don't mind sharing, how much was the build cost?

I had it figured out to build it bottom dollar of just around $570. I spent a couple bucks extra and brought the total up somewhere in the $625-650 neighborhood.

Steve, hit my range next weekend?

[Inspiribomb]

Awesome! This makes me want to pick up another lower and build up an AR pistol. Wonder if I could get Srigs to make me a holster for it...

[Vlad]

How did the function test go? I also have dot for you if interested. Thanks for your help and patience yesterday.

[JJ]

How did the function test go? I also have dot for you if interested. Thanks for your help and patience yesterday.

Not great. I was getting some fail to extract fully. I only half azzed cleaned it out an had a couple cases that came out pretty gunked up. I am gonna clean the crap out of it tomorrow and hopefully run it again on Tuesday.

[forcefed]

What day you want to go... I am down. I have a handfull of firearms I haven't even shot yet

[JJ]

Probably be Sunday for me. Maybe grab the boat and do a cast and blast? Rush isn't too far up the road.

Also for got to mention, The brass that did extract and eject properly was landing perfectly at 5:00 so I don't think its a short cycling issue. I was using Federal XM223 62g.

[JJ]

Just realized I had not updated this in a while. Got the extraction issue all cleared up after a bit of toying around. Cleaned everything really well, and got her sloppy and still had issues. Next I changed out the H2 buffer for a standard carbine buffer, and still no luck. Finally ended up putting a #60 o-ring (1/4 od, 1/8 id, 1/16 wall) around the extractor spring. Boom problem solved.

Since the o-ring fix, I have had about 200 rounds trouble free. I have not had a chance to throw the T36 on it yet to accuracy test, but if I do my part at 50 offhand with a 1moa dot I have no trouble keeping 3" groups. Trigger is a little heavy to really get the best possible accuracy, but I am confident that shooting from a good rest it will hold 2-3" groups at 100.

[Vlad]

SWEET!!!!!!! Glad you got it running well! I can almost see the veni on the grill...