With handguns designed primarily for close(er) combat, it is perhaps difficult to reconcile that the common Browning tilting-block handgun is easily unsuitable for true contact fighting. The short recoil system commonly employed by many handguns is easily used against it to disable the handgun. Even movement of a fraction of an inch will put a Glock or similar in an out-of-battery condition, rendering it inoperable until the slide can go forward unimpeded.
Recognizing this, shooters and companies have been working on stand-off devices for handguns that allow the slide to go fully forward when pressed against an object. Surefire and similar weapon lights work great and Honor Defense builds this feature into their FIST frame, which basically extends forward of the slide.
In a similar thought, DARKHOUR Defense has developed and released their SEAX, an “exclusive stand off device for a Glock 19.” By mounting to the frame rail, it creates a shield that keeps an object from pushing the slide rearward. According to DARKHOUR, the 7075 aluminum attachment “mitigates recoil” and the “extra weight keeps the pistol more steady in the hand.” It further features a “textured face for compliance reasons.”
For those curious to add extreme close-quarters capabilities to their Glock 19, you can pick one up directly from DARKHOUR Defense on their website. Pricing is set at $109 for the SEAX.