Glock G40 Gen4 MOS 10mm Long-Slide Pistol – 6" Barrel, 15+1 Capacity, Optic-Ready
The Glock G40 Gen4 MOS pairs a 6-inch, nitrided barrel with the power of 10mm Auto, giving shooters maximum velocity and a long sight radius in a full-size package. Its Modular Optic System slide accepts today’s most popular micro red dots, and the Gen4 rough-textured frame delivers secure control with interchangeable backstraps. Complete with three 15-round magazines and the full MOS adapter set, this pistol arrives ready for range, field, or duty use.
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 Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling scratches are present on the slide and frame.
What’s Included
- Glock factory hard case (black polymer)
- Three 15-round Glock polymer magazines
- Glock polymer magazine loader
- Glock MOS Adapter-Set (4 optic plates, screws, wrench)
- Glock Modular Backstrap set (interchangeable backstraps)
- User manual
The G40’s 6.02-inch barrel and matching long slide stretch the sight radius and boost 10mm Auto ballistics, making it a standout choice for hunting, handgun competition, or backcountry defense.
Glock’s MOS system lets you mount popular red dots directly to the slide without milling. Four adapter plates are provided, allowing quick, secure installation of Trijicon, Leupold, Docter, and similar footprints.
The Gen4 rough-textured frame features finger grooves, interchangeable backstraps, and a reversible magazine release, letting shooters tailor grip size and control to their hand.
Both slide and barrel receive Glock’s durable nitrided finish for corrosion and wear resistance. An accessory rail on the dust cover accepts weapon lights or lasers, and the 4.5-pound trigger uses Glock’s proven safety tab design.