GLOCK 21 Gen4Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers the legendary stopping power of the . 45 AUTO round with 10 round magazine capacity. The Modular Back Strap design on the G21 Gen4 lets you instantly customize its grip to adapt to an individual shooter's hand size. The surface of the frame employs the new scientifically designed, real world tested, Gen4 rough textured technology. Internally, the new GLOCK dual recoil spring

w/Jag 22 1/2" Working Length- Not counting handle

M-Lok slots allow you to attach accessories like: flashlight

whatever the weather

A new design of trigger guard gives the SL3 a contemporary look

Sights Fully adjustable semi-buckhorn rear

High-speed power selector with integrated throw lever

Rugged but easy to open and close zipper

HD extra-low dispersion elements

Human Tech Design

The FastFire 3 is the best selling red dot sight from Burris

Fine Aiming Red Dot

with major upgrades and also several minor tweaks in different areas