Glock G21 with Mech-Tech Systems CCU — .45 ACP Carbine, 16 in Barrel, Quad Rail, 6-Position Stock, 13+1
This custom .45 ACP carbine pairs a Glock G21 frame with a Mech-Tech Systems Carbine Conversion Unit. It features a 16-inch barrel, straight blowback operation, a continuous top Picatinny rail with a quad-rail forend, and a right-side charging handle. The setup includes a 6-position telescoping stock and comes with one 13-round magazine. The bore is excellent, and the overall finish presents as matte black metal with polymer furniture.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are marks from prior handling and use. Please refer to the photos for details.
What’s Included
- Glock G21 frame with Mech-Tech Systems CCU installed (16-inch .45 ACP carbine configuration)
- 1x 13-round Glock 21 pattern magazine (brand unspecified)
This configuration uses the Mech-Tech Systems CCU designed for the Glock 21, creating a .45 ACP carbine with a 16-inch barrel and straight blowback operation. It accepts Glock 21 magazines and is listed with a 13+1 capacity.
The upper features a tubular metal receiver with a matte black finish, an oval left-side ejection port, and a right-side charging handle with a round knob. A birdcage-style muzzle device is installed at the muzzle.
A continuous full-length Picatinny top rail and a quad Picatinny rail handguard provide extensive mounting surfaces. No sights are installed. The overall finish is matte black with polymer furniture.
The stock is a 6-position telescoping design with an integrated sling loop, and the length of pull measures 14.5 inches. The Glock host frame has finger grooves and an accessory rail. Manufacturer markings include MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA and MECH-TECH SYSTEMS INC, MADE IN USA, KALISPELL, MT.