Glock, 34 Gen4, Competition, Modular Optic System, Striker Fired, Full Size, 9mm, 5.31" Barrel, Polymer Frame, Matte Finish, Adjustable Sights, 17Rd, 3 Magazines

Glock 34 MOS Gen 4 9mm Pistol - UG3430103MOS

• Caliber: 9mm
• Length: 8.74”
• Barrel Length: 5.31”
• Slide Length: 8.15”
• Overall Width: 1.3”
• Height (inc. mag): 5.47”
• Weight: 23.28 oz. (without mag). 26.1 oz. (with mag)
• Trigger Distance: 2.76”
• Trigger Pull: 5.4 lbs

The GLOCK 34 Gen4 in MOS configuration combines an extended barrel and slide and elongated distance between sights with the MOS concept, making it easy to mount a reflex sight on the pistol’s slide without the need for a new slide or separate mounting system. The Modular back strap system makes it possible to instantly customize its grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters.

What is MOS?

GLOCK Modular Optic System makes it easier to mount optic sights on your GLOCK pistols. Optic sights are popular in competitive shooting and are becoming increasingly more popular for home defense and target shooting.

• Versatility - The MOS system allows you to add additional tall iron sights, so you have a backup in case the optics fail.
• Speed - Faster target transition
• Clarify - Quicker sight acquisition of your target
• Accuracy - Improved accuracy at both long and short range

What is the Process to Add an Optic?

The MOS system allows you to mount the sight you want quickly and easily using only a few tools. Changing the sight is just as easy; just remove the old sight, remove and reinstall the correct adapter plate, and mount the new sight.

MOS pistols come with a cover plate and four different plate options that fit the sights from the most trusted optic manufacturers in the industry.

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