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Second-generation models[ edit ] A mid-life upgrade to the Glock pistols involved the addition of checkering on the front strap and serrations to the back strap. These versions, introduced inwere informally referred to as "second-generation" models.
To meet American ATF regulations, a steel plate with a stamped serial number was embedded into the receiver in front of the trigger guard. Inan integrated recoil spring assembly replaced the original two-piece recoil spring and tube design.
The magazine was slightly modified, changing the floorplate and fitting the follower spring with a resistance insert at its base. Third-generation models[ edit ] Inthe frame was further modified with an accessory rail called the "Universal Glock rail" to allow the mounting of laser sightstactical lightsand other accessories.
Thumb rests on both sides of the frame and finger grooves on the front strap were added. Glock pistols with these upgrades are informally referred to as early "third-generation" models. Later third-generation models additionally featured a modified extractor that serves as a loaded chamber indicatorand the locking block was enlarged, along with the addition of an extra cross pin to aid the distribution of bolt thrust forces exerted by the locking block.
This cross pin is known as the locking block pin and is located above the trigger pin. Besides that, non-firing dummy pistols "P" models and non-firing dummy pistols with resetting triggers "R" models have a bright red frame and Simunition -adapted practice pistols "T" models — a bright blue frame for easy identification.
This pistol featured a new checkering texture around the grip and new scalloped fish gill-shaped serrations at the rear of the sides of the slide.
Some of those did not have the fish gills. Updates centered on ergonomics and the recoil spring assembly. The pistols were displayed with a modified rough-textured frame, grip checkering, and interchangeable backstraps of different sizes. The basic grip size of the fourth-generation Glock pistols is slightly smaller compared to the previous design.
With the medium backstrap installed, the grip size is identical to the third-generation pistols. The magazine release catches are enlarged and reversible for left-handed use.
To use the exchangeable magazine release feature, fourth-generation Glock magazines have a notch cut on both sides of the magazine body. Earlier versions of the magazines will not lock into the Gen4 pistols if the user has moved the magazine release button to be operated by a left-handed user.
Gen4 magazines will work in older models.
Earlier subcompact Glock models such as the Glock 26 and Glock 30 have already used a dual recoil spring assembly which was carried over to the fourth-generation versions of those models.You know we like to bring you quirky sometimes, just for fun. Here are a list of quotes we found on Google Reader, all pertaining to business continuity management.
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