AR pistol build is done...for now.

Here's where my long journey has basically finished.  The last things I will add this month are polymer backup sights which I should have by 12/19.  I do have the laser that is mounted on the bottom in front of the MagPul AFG2 sighted in to be 1.5" low at 25 feet.  With luck, I will be able to get to a range to get it properly sighted in over this coming weekend.

Current parts breakdown is as follows:

• Smith & Wesson M&P 15 stripped lower receiver
• CMMG Lower Parts Kit
• MagPul polymer trigger guard
• Pearce Grips 1911 grip frame adaptor and low profile grips
• 'mil spec' sized six position buffer tube with Velcro loops cemented on
• Standard mass Carbine buffer
• Mark's Armory coated Carbine buffer spring
• 1.25" cane tip cemented onto the end of the buffer tube
• CAA Saddle with Velcro hooks cemented on
• Sling attachment secured to end plate
• Aero Precision stripped upper receiver
• Detroit Gun Works bolt carrier group (will get changed out for a better carrier but it works ok)
• Standard charging handle
• S&W M&P labeled 10" free float rail
• 11.5" 5.56 barrel (unmarked) with carbine length gas port
• ICE Arms Carbine gas tube
• Cut-down front sight base gas block (barrel drilled for the tapered pins on this, very sturdy)
• Standard A2 flash hider
• MagPul Angled Forward Grip model 2
• Green laser that runs on C123 batteries (extras stored in Saddle's battery tubes)

At this point, adding a red dot and probably a x3 magnifier will be done at some point this spring.  The barrel had 'rifle cuts' in the barrel extension and the upper had 'M4
 cuts', so I carefully expanded the barrel extension's cuts to meet the upper receiver's.  This has greatly increased the feeding of 'dummy' rounds after the first as the tips are no longer getting hung up.  I will know for sure after I get to shoot live rounds out of it as to whether or not I will still have failures to feed, a problem that occasionally cropped up with the previous upper receiver.

ICE Arms will be where I source my next bolt carrier from and quite probably my next barrel for a rifle build.  Please check them out here via my affiliate link.

This build has always followed the answers I received back in July of 2012 from the ATF Tech Department Chief.  Feel free to ask any questions on any part of my build. 

Range Report #2 - hung-up buffer ends the day early

We made it out to Ultimate Defense (http://www.udrange.com) on 6/11/2013 and shot both the P238 we picked up on 6/4/2013 and my AR pistol.

First magazine (TAC powder 55 gr FMJ hand loads) worked great  four round rapid fire strings all stayed on paper and the majority were on target at 20m - Holographic sights feel like cheating! - but 15 rounds into the American Eagle 55gr FMJ the bolt recoiled behind the bolt stop and stayed there.  I removed the magazine (still had 15 rounds in it) and since the bolt hadn't gone back forward yet there was no round in the chamber.

I tried to lever the bolt free by yanking really hard on the charging handle to no avail.  Thankfully, the armorer at the range was able to free the buffer whose roll pin had worked loose just enough to hang up on the recoil spring.  Since the bumper on the buffer was VERY brittle and rather cut up I ended the day and ordered a new buffer from the Equipment Exchange on ar15.com.  I got the replacement buffer on 6/14 and my pistol is back in serviceable condition.

Now to try out the 55gr soft points I have loaded over 24gr of IMR 4064 powder I got at the Machinist Hall gun show last weekend...

Range Report #1 - it did not blow up!

Got out to a friend's private range on Saturday to both verify my build and my hand loaded ammunition as well as to teach my son to shoot.  It was an excellent day, 100% accomplished.

I am now addicted to the immediate response from shooting at AR500 steel targets.  Paper and shoot-n-see plastic bullseyes are boring in comparison.  When you hit, you hear it.  When you miss you see the dirt cloud from the berm.  Bowling pins are almost as fun.  ;)

I also got to use my new optic, an EOTech EXPS3-0.

I got my new optic in a weird way for me.  I won it.  Field and Stream is working along with EOTech to celebrate EOTech's 1 millionth manufactured optic milestone by giving away one set of EXPS3-0/G33 magnifier per month to a lucky entrant to their mail-in sweepstakes.  I am the March 2012 winner.  Since I currently have an A2 upper the magnifier is not something I needed right now, so I sold it for a bit less than retail but was able to use the money from it's sale to finish paying off the 2000 Impala.  Win/win!

I had a forward mount that attached to the carry handle and put the red dot somewhat co-witnessed with the iron sights but the rail is way out of spec and the EOTech will NOT mount to it.  I have a new/used mount on it's way to me from an eBay purchase which should work MUCH better.

I had hoped to get pics of the kiddo shooting, pics of my wife shooting and video of my AR but the phone ran out of juice and I forgot to pack our camera.  Fortunately, my friend was gracious enough to give us an open invitation to return at any point.

My son is eagerly awaiting his 10/22, which I hope to have purchased for him before the end of summer.

And done enough to shoot!

Ok, I'm pretty happy now. Thanks to Code Red and the AR15.com equipment exchange, my pistol is shootable. Not quite done, the barrel needs to get chopped to 10.5" from the 14.5" it is now with some no-name break welded to it. Also I need to get a CAA saddle type cheek weld platform to attach t the buffer tube and a Z style handle optics mount so my red dot will co witness with my iron sights.