Glock COA Pistols

Glock COA Pistols

Glock COA pistols are factory 9mm Glock pistols with an Aimpoint COA already on the slide. Glock and Aimpoint built that package around A-CUT, a slide interface that seats the optic deeper without adapter plates. The COA is an enclosed 3.5 MOA red dot. Factory backup sights co-witness with the optic. Handguns ship to a licensed FFL.

Glock mills an A-CUT dovetail into the slide. The optic locks on a patented wedge with a front hook, so the housing sits lower than a plate-mounted red dot and does not need screws through the optic body. That low mount helps with concealment and keeps the factory sights in the window. MOS adapter plates and Gen6 Optic Ready System plates are not part of this setup. These slides are cut for the Aimpoint COA.

The COA housing is 7075-T6 aluminum. It measures 1.8 by 1.1 by 1.2 in. and weighs 1.7 oz with the battery. A CR2032 battery powers the sight for 50,000 hours at daylight setting 7. Twelve brightness settings cover four night-vision steps and eight daylight steps. You can change the battery without taking the optic off the slide. The enclosed emitter keeps rain, dust, and lint off the LED. The sight is submersible to 25 m (80 ft).

Shop Glock COA pistols here. This page holds factory Aimpoint COA packages on the Glock 43X, Glock 48, Glock 19 Gen6, Glock 17 Gen6, and Glock 45. Slimline 43X and 48 pistols sit here with compact G19, full-size G17, and crossover G45 guns. Pistols here are 17-round, 15-round, or 10-round Glock COA guns. See also Glock 43X, Glock 48, Glock 19, Glock 17, Glock 45, Glock magazines, and the Glock pistols hub.

MOS8, DC8, MOS, and Gen6 ORS

MOS8 on a Glock 45 or Glock 48 COA is the factory A-CUT package with the Aimpoint COA installed. Glock 43X COA pistols on this page use that same A-CUT package, even when the title still says MOS. MOS8 is not Glock’s Modular Optic System. A standard G45 MOS ships with one adapter plate and no factory red dot. Slimline MOS on a 43X or 48 is a Shield RMSc-pattern cut with no plates and no factory red dot.

DC8 on a Glock 17 Gen6 or Glock 19 Gen6 COA is the same factory A-CUT package on a Gen6 pistol. Glock 45 Gen6 COA pistols on this page use that same cut. Gen6 optic-ready pistols without a COA use the Optic Ready System and three plates. Those plates are not on these COA slides.

Glock 43X, 48, 19, 17, and 45 COA

The Glock 43X COA is Glock’s Slimline 9mm for everyday carry, with a 3.41 in. Marksman Barrel, a 6.06 in. slide, and a 6.50 in. overall length. Height with a magazine is 5.04 in. Width is 1.10 in., with a 0.87 in. slide. A slim mounting rail sits in front of the trigger guard. Magazines are 10-round Slimline magazines or Glock’s OEM 15-round Slimline magazines.

The Glock 48 COA keeps that same Slimline grip under a compact-length slide. A 4.17 in. Marksman Barrel sits in a 6.85 in. slide, and overall length is 7.28 in. Height with a magazine is 5.04 in. Width stays 1.10 in. The 48 COA on this page ships with 10-round Slimline magazines.

The Glock 19 Gen6 COA is Glock’s compact 9mm. A 4.02 in. barrel sits in a 6.85 in. slide, and overall length is 7.28 in. Height with a magazine is 5.04 in. A G19 Gen6 is 1.35 in. wide. Magazines are 15-round Glock 19 magazines as standard, with 10-round guns on this page. Glock’s accessory rail sits in front of the trigger guard.

The Glock 17 Gen6 COA is Glock’s full-size 9mm. A 4.49 in. barrel sits in a 7.32 in. slide, and overall length is 7.95 in. Height with a magazine is 5.47 in. A G17 Gen6 is 1.34 in. wide. Magazines are 17-round Glock 17 magazines as standard, with 10-round guns on this page.

The Glock 45 COA is Glock’s compact crossover 9mm, with a G19-length slide on a G17-length frame. A 4.02 in. barrel sits in a 6.85 in. slide. Overall length is 7.44 in., and height with a magazine is 5.47 in. Magazines are 17-round magazines in the Glock 17 pattern, with 10-round guns on this page. The MOS8 G45 uses a Gen5 frame and a Marksman Barrel. The Gen6 G45 COA adds a palm swell, a thumb rest, Gen6 grip texture, an enlarged beavertail, an undercut trigger guard, deeper slide serrations, and a flat-faced trigger.

Magazines

Slimline 43X and 48 COA pistols use Slimline magazines. Factory 10-round Slimline magazines use an orange follower. Glock’s OEM 15-round metal Slimline magazines work with the standard magazine catch. Compact G19 COA pistols use Glock 19 magazines. Full-size G17 and crossover G45 COA pistols use Glock 17-pattern magazines. Spare magazines sit on the Glock magazines page.

How to choose a Glock COA

Choose a Glock 43X COA for Slimline width and a 3.41 in. barrel. Choose a Glock 48 COA for that same grip under a compact-length 4.17 in. slide. Choose a Glock 19 Gen6 COA for compact double-stack size with Gen6 grip work. Choose a Glock 17 Gen6 COA for full-size 9mm length and 17-round magazines as standard. Choose a Glock 45 COA for a compact slide on a full-size frame. MOS8 and DC8 packages on this page already include the Aimpoint COA on A-CUT. Magazines are 17-round, 15-round, or 10-round. Handguns ship to a licensed FFL.