![]() In fact, Quarter Circle 10 has been putting out dedicated pistol-caliber AR uppers and lowers in a variety of calibers since 2011. Until recently, most of those have been chambered in 9mm.Īlthough this might seem like a new trend, some folks have been doing this for a long time. Text: Stefan Perey / Michael Fischer More information about Quarter Circle 10 pistol caliber carbines can be found on the Texan manufacturer's website.Pistol-caliber ARs have really taken off in the past few years, and it seems like almost everyone that makes an AR is jumping into the game. Workmanship, handling, operation and shooting performance are absolutely convincing, so that the price of 2690 euros is absolutely justified in our opinion. "Out of the box" it offers all the design and features that distinguish a modern 9mm semi-automatic PCC for training and competition. Undoubtedly, the Quarter Circle 10 Euro-Racer carbine presented here is not a cheap treat, but it is worth every cent. Our conclusion on the Quarter Circle 10 Euro-Racer pistol caliber carbine (German price – price may vary in your country) Hipertouch Reflex" match trigger, measured trigger weight: 1250 gramsĤ5-degree safety on both sides of the grip, acting on the trigger GLOCK magazines, 1x Magpul PMAG magazine included. Systems fixed carbon fiber stock, free-standing plastic Magpul MOE pistol gripĪnd Lancer Systems octagonal carbon fiber handguard Mm long with weight and vibration optimized contour, 1-10" twist and With the Quarter Circle 10 Euro-Racer on the shooting range An ambidextrous Radian Talon charging handle, an ambidextrous Radian Talon 45-degree safety, and a free-standing Magpul MOE pistol grip successfully round out the match carbine's features. The trigger weight can be adjusted within a range of about 1130 to 1590 grams, and the trigger on our test gun broke cleanly and crisply at a measured 1250 grams without any modifications by us.Ī very short reset travel is also a feature of the "Hiperfire Hipertouch Reflex" trigger, which is of course ideal for dynamic shooting. Thanks to its design, the single-stage trigger with curved blade reduces friction with its double coil spring and also increases the hammer strike power by up to 35 percent compared to a standard Mil-Spec trigger. The "Hiperfire Hipertouch Reflex" trigger unit used in the lower is also first-class. Magazines (here from GLOCK) sit in the QC10 Euro-Racer with different feedĪngles in the magazine well of the "GLOCK Small Frame Receiver". Finest ingredients: the equipment of the QC10 Euro-Racer Carbine In terms of pure functional reliability during shooting, neither magazine make showed any weaknesses.īecause our test gun was equipped with a 3G Sports polymer magwell, which appears to have come from a high-quality industrial 3D printer, we gave the GLOCK magazines corresponding polymer floor plates, which we made using our own modest 3D printer.Feinste Zutaten: Ausstattung des QC10 Euro-Racer Karabiners. However, the lever operation can be quickly adapted to different magazines. ![]() In practice, we used original GLOCK magazines and Magpul PMAG magazines with a 10-round capacity.ĭue to the more reliable bolt catch lever operation, we relied only on the Austrian originals in further testing. ![]() This is due to the different design of the magazines in detail, with differing follower positions and spring strengths. When selecting magazines, problems may arise with the bolt being locked in its rear position by the bolt catch lever after the last shot ("Last Round Bolt Hold Open on Empty" LRBHO). Euro-Racer's ambidextrous Radian Raptor LT charging handle is emblazoned with
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