My first AR15 build

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redcon1

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Jul 22, 2008
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Northern Ohio
I had decided that i wanted to build an AR15 about a month ago or so and after spending a bunch of money on parts and tools, I have a fully assembled rifle today. I'm pretty proud of it though I'll be more proud if it shoots tiny little groups. This rifle was built to shoot targets at 100 yards, to alleviate winter boredom and to develop a new skill (building AR15s).
Here are the specs:
Barrel: Shilen 20" match grade, SS, .223 Wylde with matched bolt from Brownells.
Receivers: Aero Matched AR15 Threaded Stripped Receiver Set. there's about .001" of slop between the receiver and extension and I didn't shim it though I may later if it seems like I need to. Next time I'll thermofit but it was more than I wanted to get into this time around. I also didn't square the receiver face because, although I was lucky enough to get a Brownells receiver face lapping tool, they don't have any aluminum oxide lapping compound in stock and I can't find it anywhere else so we'll see if it's a problem and address it later if it is.
Gas Block: Superlative Arms bleed off AGB (yeah, it's a clamp on, I wimped out and didn't dimple. I will next time)
BCG: Aero
Handguards: Aero MLOK torqued to ~33 ft/lbs with Aeroshell 33MS (which Aero makes no mention of in their torque specifications so I'm outside their directions there)
Trigger: Trigger Tech Diamond (this is the best trigger I've ever pulled).
Buttstock: Leftover from my Armalite AR10 purchased in...2007. It seems out of proportion maybe but it fits me well. Things been floating around the house forever. Glad it's back on a rifle.
Forward assist: Strike industries (I wish it had a skull on it).
Ejection port Cover: I don't remember but it looks approx 10% cooler than mil spec.
Pistol grip: Magpul- It came with the pins and springs kit. I like it. Good palm swell, feels good and right. It stays.
Trigger and hammer pins: I made those myself because my strike industries anti-walk pins were junky and broke. The Strike Industries trigger pin fell out of the receiver, I assume, because the Trigger tech trigger is a drop in cartridge and there's no trigger spring to hold the pin in place so I turned some 3/8" SS rod stock down to ~.154", left a head on one end and drilled both ends with 2mm holes to accept wire and then wired them in place with one of these to keep them from going anywhere. I have Wilson anti-rotation pins on the way but I may just use my custom fabricated pins because I kind of like 'em. They're definitely representative of my kind of solution.
Anyways:

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Sounds like you put together a good rifle, based on the stuff you used it should perform nicely if things are put together well. :thumbup:

A question, doesn’t the trigger cartridge have set screws for adjustment that will protrude from the bottom to center it and anchor it against the pins? Since it does, friction from the adjustment of the cartridge will hold the pins in place without having to resort to placing potentially hand or fabric snagging wire on the exterior.

Just a suggestion.

Let us know how it shoots for you when you get a chance to exercise it :).

Stay safe.
 
There is always automotive lapping compound from the auto parts store in lieu of the aluminum oxide stuff from Brownells.
 
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