Glock 21 Gen4 .45 ACP Full-Size — U.S.-Made, SilencerCo Threaded Barrel, Trijicon Night Sights, 3 Mags
This U.S.-made Glock 21 Gen4 stands out with a SilencerCo stainless threaded barrel, Trijicon night sights, and matching serials on the slide and frame. It includes the Gen4 Modular Backstrap System, three 13-round magazines, and a Glock factory case. Installed grip tape and a textured slide panel with a red spider graphic add practical traction and a distinctive look.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent - Sharp lands and grooves.
Specific Condition Notes: Excellently maintained. Adhesive grip-tape wrap is installed on the frame. Additional textured panels are applied along the slide serrations and on the top of the slide.
What's Included
- Glock factory hard case with G21 Gen4 label
- 3x 13-round Glock factory magazines
- SilencerCo threaded barrel for Glock 21 with knurled thread protector (installed)
- Trijicon night sights (installed)
- Aftermarket extended/textured magazine release (installed)
- Extended slide lock/takedown lever (uninstalled, new in package)
- Glock Gen4 interchangeable backstraps (set of 4)
- Jolly Rogers magazine baseplate
- Glock OEM magazine baseplate
- XGRIP magazine adapter sleeve
- Glock magazine loader
- Adhesive grip tape wrap on frame (installed)
- Adhesive textured slide panel with red spider graphic (installed)
The G21 Gen4 is a full-size, double-stack .45 ACP with a 13+1 capacity, striker-fired operation, and Glock's Safe Action system. Its polymer frame includes an accessory rail, and the slide wears a matte black finish.
Made in the USA, this example bears the USA rollmark and "MADE IN USA GLOCK, INC., SMYRNA, GA." markings. The slide and frame have matching serials, aligning the major components to the same number.
A SilencerCo stainless steel threaded barrel is installed and includes a knurled thread protector. The barrel measures approximately 5 inches and is marked "SILENCERCO .45 ACP G21."
Trijicon tritium night sights are installed, pairing a high-visibility front with orange outline and a rear with two tritium lamps for low-light aiming. An aftermarket extended, textured magazine release is installed for easy manipulation, and an extended slide lock/takedown lever is provided new in package.
The Gen4 Modular Backstrap System is present with four backstraps to tailor grip size. Adhesive grip tape on the frame and a textured panel with red spider graphic on the slide add traction and a unique visual touch.