SBR Build: SIG SG 552 Commando Carbine

by
posted on December 14, 2016
sig-sauer-552-commando-carbine-sbr-build-f.jpg

It turns out both good—and rare—things are worth waiting for. Case in point: Back in 2009, I began the process of transforming a SIG Sauer P556 pistol into an NFA-based short-barreled semi-auto rifle project with the goal of giving said firearm a face-lift so it resembled the iconic SIG SG 552 Commando Carbine.

The SIG SG 552 Commando is a carbine variant of the SIG SG 550, a battle rifle designed in the 1980s and built from 1986 until just a few years ago. The rifle is based on the earlier SIG SG 540, and both used a gas-actuated long-stroke piston-driven system much like those used on the iconic AK series of rifles. However, the 550 and later variants featured an adjustable gas valve with two settings: one for normal operation and another to deal with excess fouling or icing.

Despite accumulating most of the necessary furniture and components along the way, on an aesthetic and technical level, the version I created wasn’t as precise as it could have been in that my rifle’s lower receiver was designed to accept STANAG magazines, not the original proprietary Swiss magazines. To compound matters, SIG Sauer ceased production of its line of AK-based rifles a few years ago.

Fortunately, Lady Luck (and people within the firearm industry) occasionally learn of such projects and, every now and then, have the parts one needs to bring a long-term project to a well-deserved close.

The purchase of a second lower receiver and four of the original translucent Swiss magazines makes this rifle even closer in appearance to its shorter-barreled Swiss cousin.

Latest

Mossberg 500 and 590 shotguns
Mossberg 500 and 590 shotguns

Mossberg 500 and 590: America’s Defensive Shotguns

Since 1961, the O.F. (Oscar Frederick) Mossberg company has sold more than 11 million of its Model 500 pump-action shotguns, making it the most popular shotgun of all time, if not one of the most sold guns in any category, period.

Customizing the Colt Detective Special

Got a gun with that has seen better days? Perhaps Grandpa’s favorite gun was obviously “well loved?” Talented gunsmiths and other artisans are out there who can give your favorite firearm a much-needed face-lift.

First Look: Dead Air Armament Primal Suppressor

Dead Air Armament is adding the Primal, a new.46-caliber magnum rated suppressor to their lineup of firearms sound suppressors.

9/11 20 Years Later: A Special Smith & Wesson

There are still heroes in this world. We mourn the loss of one some 20 years later on the 20th anniversary of the September 11th attacks.

Why Defensive Firearms Training is So Important

Yes, you may never have to fire your handgun in defense of your life or family, but the possibility always exists.

Review: Smith & Wesson Shield Plus

In retrospect, Smith & Wesson had nobody to blame for the situation but themselves. The company didn’t invent the subcompact, lightweight, single-stack nine, of course. Walther and Beretta had preceded the original Shield to market by a few years with the PPS and the Nano, respectively, and Kahr had more or less created the niche back in the 1990s.

Interests



Get the best of Shooting Illustrated delivered to your inbox.