Select-Fire/Full-Auto Glock 22 .40 S&W Machine Pistol at the Range: STS Arms Select-Fire Backplate/Backplate Fire Selector Switch for Glock Pistols (Video!)

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By David Crane
defrev (at) gmail (dot) com

All photos and video contained in this article were shot by, and are copyrighted. owns the copyright on these photos. The photos and video clips were shot with an Apple iPhone 4S smartphone with 8MP (8-megapixel) still camera and 1080p HD video camera.

The following article is property of (DR) and is copyrighted material. If you are reading this article on another website other than, please email us the website address/URL (where the unauthorized DR article reprint is located) at defrev (at) gmail (dot) com. Thank you.

May 14, 2012
Last updated on 5/14/12.

DefenseReview (DR) stopped by STS Arms in Oregon yesterday on our way out to NDIA Joint Armaments Conference, Exhibition & Firing Demonstration 2012 in Seattle to drop off some guns (ARs and other weapons) for (Cerakote ceramic) coating, one of the company’s specialties. STS coats the inside with Micro Slick, a permanent dry-lubricant ceramic coating that significantly reduces or even eliminates the need for wet lubrication. STS’ owner Ron Downs then took us to the range for a little shooting session with some of his guns, including an in-house-built (STS Arms) suppressed tactical AR SBR (Short Barreled Rifle) chambered in 300 AAC Blackout, a full-auto .22 LR AR, and the piece de resistance, a select-fire/full-auto Glock 22 (G22) machine pistol outfitted with an prototype push-button-type STS Arms select-fire backplate/backplate fire selector switch reminiscent of the FSSG Fire Selector System, which DR wrote about a long time ago.

In fact, the STS Arms backplate selector switch would appear to operate identically to the FSSG, and only differ a bit in physical appearance and materials. The STS Arms select-fire backplate for Glock Pistols appears to be all steel, while the FSSG, originally invented by a Mr. Jorge A. Leon of Venezuela, and holding U.S. patent number US5705763, incorporates high-impact graphite polymer. How the STS backplate gets around the FSSG’s patent, or if it gets around it, is anyone’s guess. It sure is fun, though. Actually, it’s a blast, excuse the pun.

So, how does it work? For normal semi-auto fire, make sure the push-button-type selector button is pushed all the way to the left so it’s sticking out the left side and is flush on the right side. To go rock n’ roll/full-auto, just push the button from left to the right so the button is sticking all the way out on the right side.

Just like th FSSG, the STS Arms replacement Glock backplate selector switch replaces the standard Glock backplate, and and can be swapped out from one Glock to another just as easily.

The first video below (top video)  is my second attempt at full-auto fire with the STS Arms backplate-outfitted G22 pistol, once I was used to its firing characteristics. The second video below (bottom video) is my first attempt.

Company Contact Info:

Main Factory Contact:
Ron Downs, Owner
Phone: 541-336-3006

Dealer Sales, NFA, and Coating Contact:
Phone: 541-336-3006

Law Enforcement / Military Sales:
Phone: 541-336-3006

Cerakote Firearm Coatings
Division of NIC Industries, Inc.
7050 6th Street
White City, OR 97503
Toll Free: 866-774-7628

Glock, Inc.
6000 Highlands Parkway
Smyrna, GA 30082
Phone: 770-432-1202
Fax: 770-433-8719

Glock Ges.m.b.H.
P.O. Box 9
A-2232 Deutsch Wagram
Phone: +43 (0) 2247 – 90300-0
Fax: +43 (0) 2247 – 90300-300

© Copyright 2012 All rights reserved. This material may not be published, broadcast, rewritten or redistributed without receiving permission and providing proper credit and appropriate links.

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Select-Fire/Full-Auto Glock 22 .40 S&W Machine Pistol at the Range: STS Arms Select-Fire Backplate/Backplate Fire Selector Switch for Glock Pistols (Video!) by

About David Crane

David Crane started publishing online in 2001. Since that time, governments, military organizations, Special Operators (i.e. professional trigger pullers), agencies, and civilian tactical shooters the world over have come to depend on Defense Review as the authoritative source of news and information on "the latest and greatest" in the field of military defense and tactical technology and hardware, including tactical firearms, ammunition, equipment, gear, and training.

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