Quarter Circle 10 had a very strong line up this year at their booth consisting of several flavors of AR pistols chambered in pistol calibers. Danny walked me through the lineup of their pistols that accept Glock magazines and feature a last round hold open. Currently available in 9mm, .40 S&W, and .45 ACP you can choose either the large frame Glock lower or the small frame Glock lower depending on the caliber you want. Quarter Circle 10 also offers a Colt SMG mag version as well. Barrel lengths on the pistols are available in 3.5″, 5.5″, 7.5″, 10.5″, 14.5″, and 16″ depending on the end users requirements.
Quarter Circle 10 will be offering these as factory machine guns to law enforcement and military, sorry everyone else ATF says we aren’t cool enough. The stand out feature on the Glock mag lowers is the fact that it has a last round hold open, something many other manufactures gave up on and decided to abandon. Quarter Circle 10 says there are no plans at this time to offer a factory SBR, but that may change in the future. The pistols on display were sporting a stabilizing fin to make it compliant. The MSRP will be right around $1000 and head up from there depending on configuration.