Not sure how this is going to turn out, but it all started with a couple of Colt OEM1 purchases. I decided to use one of the Colt OEM's to install a FSB DD RIS II Rail (Thanks SINNER) The other Colt lower, I planned to SBR to finish a CQBR gun.

So I've got this extra Colt Upper, a KAC RAS, and a KAC Stripped Lower. I cut the 16" barrel down to 10.3" Rainier Arms did the work. I could do a MK18 Mod 0, but then I'd feel like I should have used the Colt Lower. I also don't want to pony up for another PEQ-2 or additional "clone" parts for this.

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Attachment 3284

Not sure how the rest of the gun will turn out, but I'm going to fill out a Form 1 for the KAC Lower.