An overview and installation demo of the Arredondo Glock magazine extension for the Glock 19/23.
From the 2014 SHOT Show, an overview of the HK MR556A1 Competition Rifle. HK MR556A1 Competition Rifle Specs: Caliber: 5.56x45mm Principle of Operation: gas operated Length, maximum (stock extended): 37.00 in. Length, minimum (stock retracted): 33.75 in. Overall Width: 3.07 in. Height: 9.45 in. Barrel Length: 16.5 in. Weight: Rifle (with empty magazine): 8.81 lb. …