Shooting Illustrated | How to Choose the Right Handgun Red Dot Mounting System

One size doesn’t fit all when it comes to attaching red dot optics to a gun. The bases of the aftermarket units are not necessarily identical – so-called footprints – and the pattern that is milled into the slides of the pistols to accommodate them varies by manufacturer, sometimes model. Adapters and disks resolve the conflict, but the number of incorrect combinations is staggering. Shooting Illustrated reached out to the experts to clear up the confusion.

A semi-automatic pistol designed to accept an aftermarket red dot sight has a combination of grooves, dimples, or eyelets milled into the slide. The configuration is often company-specific, proprietary and only fits perfectly with certain aftermarket optics. Manufacturers who make handguns for optics face conflicting profiles by providing a selection of adapter plates. The approach is the most efficient assembly method today.

Tom Victa, Gun Product Manager at FN America, stated, “FN’s optics-ready FN 509s feature our patented low-profile optics mounting system that provides everything users need to directly mount most gun redpoint optics , including a practical In the reference instructions you will find out which MRD insert and which screw set go with which optics. ”

Tony Miele, Smith & Wesson’s senior director, new product development, said the company uses the CORE (Competition Optics Ready Equipment) mounting system. Buy a CORE model and “The gun comes with six mounting plates that house many of the popular optics for sale,” he said.

Glock cuts his slides for the company’s Modular Optic System. “We include an adapter set with every MOS [except Slimline models] It has four different plates to cover the vast majority of pistol optics on offer, ”said Brandie Collins, PR and communications manager. “If an optic doesn’t fit, the manufacturer usually provides a suitable plate. Slimline is supplied without adapter plates and is specific to some of the new microdots for CCW narrow profile guns. “

You can also buy a new sled or have a current sled machined for anchoring without the adapter intervening. Rival Arms, a Texas-based company with an enviable reputation for this service, stated, “We offer two different optical styles, RMR and DOC. As you can imagine, the RMR cut corresponds to the optical cut of the Trijicon RMR visor and also works with other optics that follow this footprint (Trijicon SRO, Holosun 507c, Swampfox Kingslayer, TruGlo TRU-Tec Micro RMR variant, etc. ). ). The DOC refers to the Docter Optic footprint / set screw pattern that is compatible with the following popular sights: Vortex Viper [and] Venom, Burris FastFire etc. “

Ready-to-use foils are available. “We currently have three different footprints, the RMR, the RMRcc and the Shield RMSc,” said a Brownells gunsmith, who asked to remain nameless answered. “Leupold DeltaPoint and Burris FastFire is a work in progress and should be available in the second quarter [of this year]. “Which profile is currently the most popular, he told the RMR because” … there are other companies that use this footprint so that a person is not tied to a particular brand of optics. “

Experts agree that enthusiasts should review the space requirements of their preferred optic, compare it to the included sliding cut or adapters, and if in doubt, contact customer service to make sure your purchase is the right one.

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