
DM is ok, best way to contact me is email: duncan AT catsupplyco DOT com Just finished my latest run of these as of February 2026 - I've added M16A2 GOV'T marked (for 20" rifles) and M16A2 Commercial-off-the-shelf style (for 727, 723, 733 and Gordie) as well as another run of M4A1 GOV'T lowers. Latest run has a better anodizing color match to true Colt and more authentic selector stop embossments and forge lines. I am discounting M4 GOV'T burst marked lowers to $200 as I overproduced them a bit. Selector and magwell markings are embossed, not engraved, with Colt cylindrical roll dies purchased from a former Elisco engineer overseas. Anodizing is MIL Type-III hardcoat in charcoal grey to replicate the coloration used by Colt during the era. FCG area is M4/M16 cut with the proper concave area for the (absent) autosear. Front and rear profiles are correct for Colt’s carbines of this era. Model number is “SS16” discretely engraved with FFL info in the trigger guard area. Correct SAFE-SEMI-AUTO roll marks from Colt selector dies. NFA rules apply. Serial number range is correct for genuine A2 carbines of this era. Specs are cut to exact Colt tolerances, will fit ideally with Colt manufactured upper receivers. This item is a firearm and must ship to an active, licensed FFL. Shipping is free. All common payment methods accepted. USPS MO, Zelle, Paypal FF, Venmo etc. $250 shipped for M4A1 or either M16A2 style, or $225 shipped each for orders of 2 or more different lower types