‘Rim-Tac’ Rifles, Round II: The Sig 522 Edges Umarex’s M4
Carl Walther built Colt’s Tactical Rimfire, and it stays true to the look and feel of the AR-15, but with some drawbacks. If you don’t need AR operation, Sig’s 556-derived rimfire shoots well.
In February 2010, we began evaluating tactical or military-style carbines chambered for the 22 LR round, and we continue to find new guns in what we call the "rim-tac" category. Previously, we looked at one AR-15 derivative, one tac-styled 10/22, and another carbine that more closely resembled a 1941 Russian machine gun. Our test guns were the Ruger SR-22R No. 1226 22 LR, $625; Smith & Wesson’s M&P 15-22 No. 811030 22 LR, $569; and the Legacy Sports Puma Wildcat PPS2250S 22 LR, $550. In that test, we narrowly liked the Smith & Wesson M&P 15-22 the best, giving it an A grade compared to the Ruger’s A- tally and the Wildcat’s Bgrade.
Along the way, we had a heckuva lot of fun with the rifles without breaking the ammo bank. So, we gathered up two more rimfire samples from Umarex and Sig Sauer and wheelbarrowed bricks of 22 fodder to the range and had at it. Our test guns this round were the very different Colt M4 Carbine No. 2245050 22 LR, $576; and the Sig Sauer Sig522 Classic No. SIG522001 22 LR, $572.
The Colt has a complicated background. Carl Walther Germany entered into a licensing agreement with New Colt Holding Corporation, in which Carl Walther will produce these 22 rifles in Germany under the Colt brand. Umarex USA is responsible for importation, sales, marketing and service for the Colt tactical replicas.
Two tactical styles are being offered, each modeled after a Colt original—the M4 and M16 rifles—and both are available in two variations with 30-round 22 LR magazines along with a variety of accessories. The M4 version that we tested is a blowback semiauto with a barrel length of 16.2 inches (412 mm), overall length of 31.1 to 34.4 inches depending on the adjustable stock length, and iron sights, with the rear set into a detachable carry handle on a metal flat-top receiver.
Likewise, the Sig522 has lineage worth noting. According to Sig Sauer, the 522 has the "…look and feel of the Classic SIG556. Featuring SIG556 parts, including a Swiss-type folding stock and polymer forend on a durable metal receiver with integral Picatinny rail." We evaluated a 556 in the March 2010 issue, grading the 5.56mm rifle highly with an A-, but dinging it for its weight and cost.
Those aren’t such factors with the 522, whose price tag is a few dollars below the M4 rimfire and whose weight is 6.4 pounds empty. Its overall length is 35.1 inches with the stock fully extended, 33.6 inches with the stock collapsed, and 26.1 inches with the stock folded.