I'm going to call this one 99.95% finished. Some upgrades may be coming down the road, but for all intents and purposes, it's finished and working like a sewing machine. While the write-up for this project can be found
here, I'll duplicate the parts list (edited to reflect the current configuration.)
Upper Half
Colt A4 9mm upper
CMMG 9mm BCG
QC10 Barrel 9mm 5.5" 1/2"-28
BCM Gunfighter Charging Handle Mod. 4
Standard Barrel nut
A1 Flash Hider bored for 9mm
Magpul Pro BUIS*
MI Keymod hand guard, custom cut*
Lower Half
GPI Slim Colt-style Lower
White Oak LPK
ALG ACT trigger
KNS Anti-Rotation Pins
Hahn Precision 9mm Buffer
Carbine spring
KAK Shockwave RE*
Shockwave Blade brace*
Magpul MOE SL grip*
Magpul Enhanced trigger guard
Magpul ASAP-QD end plate
Yes, I colorfilled the pictogram markings as well as the non-lever side of the safety selector. I did this for two reasons, 1) I want the condition of the gun to be clearly visible to observers and 2) I really like the looks of it.
I was having major ejection issues and went so far as to buy a different buffer and Wolff extra power spring and tried different brands and weights of ammo. No joy. Finally, I did a little bit of research and traced it to the ejector. A slight tweak and the thing spits the empties four feet to the 3o'clock.
I originally had the Magpul K grip on it. For what the gun is intended to do (mimic an MP5k), it was naturally a given. However, after using the SL grip for a bit, I'm sold on it to the point where I may swap out the MIAD on my Colt 6920. I've had the MIAD on there for so long, it became my default grip of choice. I do wish the SL had room for storage, but I might be able to jerry-rig something. I'd like to keep a set of foam ear plugs with it in case I happen to forget my ear pro.
I want to get a hand stop to keep hands away from the muzzle. I'm thinking of the
ZeroBravo RHS for this. I may also try the Noveske panels. I may also play with cutting some longer rails to give me more room for a vertical grip and hand stop once it's SBRed. The next step though is finding a case for it. Currently, it's sitting in a tennis racket case I picked up at Goodwill for a ludicrous amount of money...$8!
It fits it pretty well, but there's no way to keep magazines with it and, well, I'm not the tennis type.
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