Back to the basics....Colt M4 2013

ECVMatt

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Jan 7, 2004
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Years ago my dad bought a Colt M4, but wanted to use it more for target shooting and just range fun. We pulled off the front sight, installed a funky free float rail, a unknown brand cassette trigger, a crazy big Nikon P-223 with target knobs, an ambi-safety, and weird looking muzzle break. We also installed some other stuff to make it compliant in our state. I haven't really touched it since he passed away a few years ago, but was going to build a simple carbine to use on my rural property and remembered the Colt. I brought it out of the back of the safe and was immediately struck by how dated it was. I did remember that the rifle shot well however, so it was time to get back to the basic and undo some of the madness.

I can't believe that I forgot to take a "Before picture", but in short order I tore the gun down and got ready to return it to a simple, reliable carbine. To get this done I needed a good trigger, regular safety, a hand guard cap, replace the furniture, better fin grip for compliance, muzzle break, delta ring assembly, and a rear sight.

First thing I did was remove the front sight, remove the funky free float tube, remove the barrel and cleaned everything up. I then installed the delta ring assembly, the hand guard cap, the front sight and a small muzzle break. I put everything back on the upper and installed a LMT L8A rear sight and the upper was mostly done. Next I removed the ambi-safety and the trigger. I cleaned out the lower and installed a LaRue MBT 2S trigger, a standard safety, and a Strike Industries MegaFin grip. On the buffer tube, I installed Magpul Fixed Carbine Stock. I put a matching Magpul MOE hand guard on the upper and the project was complete.

Before heading to the range, I set up the L8A sight for the RIBZ method and headed out for some shooting. I also brought a simple AR15 rack to mount in my trailer that I keep on the property. We mounted the rack and a small shelf then headed over to the range.

It only took a few rounds to get a good 50 yard zero and the rifle ran great. Everything worked perfect together and the rifle was a joy to shoot. After it was sighted in, my son and I spent the afternoon breaking clays on the 100 yard berm (as far as we can shoot at this location). After that we took the rifle for a trip around the property to check fences and the perimeter of the property.

All in all it was a great day getting the rifle up and running, shooting my dad's rifle with my son, and being outdoors.

Here are a few pictures to keep it interesting.

Here is the rack and the shelf.
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Almost there at 50 yards...two clicks to the right and we were good.
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Out and about with the improved rifle.
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Checking fences....always fun.
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When I got my Colt Match Sporter, it had been treated to the flat top upper/scope/VFG/laser/light/rails everywhere treatment....including a glued-on Barrett M82 style muzzle break. :confused:

Fortunately, the guy I got it from had kept all the original parts, including the Colt-branded 5-round magazine and .22 Conversion kit.
Didn't take long to return it to its former (much lighter!) glory-
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And I had enough parts left over to start 2 more builds.:)
 
Basics are nice. I am glad to see the “retro” styles are coming back again. I also desired a basic carbine and this was the result. A7 fixed upper, Colt Government Carbine 16” 1:7 pencil barrel, Colt 6 hole hand guards, XM-177 carbine stock. I wanted an XM-177 / GAU-5/A/A homage and ended up with more of a Colt SP-1 Carbine.

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Those are both AWESOME!

I also brought my Eagle Arms A2 musket today. That one is my son's favorite. The A2 really is a great rifle.

EG - I would die for that upper. I have been looking for a C7 type upper forever. I can only find ones that are way too expensive or out of spec. The search goes on.

It is easy to forget how svelte an AR can be once you start bolting things on to it.
 
Had an argument with a bone head Fudd who wanted to ban 'assault rifles' but couldn't define one. The doofus fin on the OP's carbine being an example of the goofy 'work arounds' used to comply with the law.
Nice carbines, gang. Yes, KISS has a lot to recommend it.
Moon
 
Good job. I Was never much of a fan of the colt AR15s until I finally bought one for myself kind of as a "maybe it will be worth $4k again someday" investment. It's the stock version of the LE6920. It sat in my safe for a couple years untouched until I decided to use it in a competition after it was one of 6 rifles I ran through the paces to choose the "right one". Just on a whim I threw it in the lineup. It won. The dang thing just runs and is remarkably accurate. I've grown to appreciate them a lot more. Those ridiculous fin grips though, as if it makes ANYONE safer....thank heavens AZ isn't that retarded....yet.
 
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