Our Colt lower is housing a Geissele SSA-E trigger, Mil-Spec parts kit, and A2 grip. Because the flat, aluminum trigger guards can be sharp, we added some tape to ease the pain. Radian …

With the advent of the USASOC URGI, that quintessentially American silhouette has changed forever. The Geissele Super Modular Rail MK 16 handguard, hammer forged barrel, and mid …

URG-I全称是 “改进型上机匣组（Upper Receiver Group, Improved）”，该项目是美国陆战特种作战司令部（USASOC）在2017年发起的一项对现役的 SOPMOD II 进行升级改造的招标计划 …

服役数量最多的是14.5英寸枪管版本的URG-I，已经基本在陆军特种部队和第75游骑兵团中代替了同长度Daniel Defense RIS II URG，10.3英寸版本换装较慢。 空军情况不明，但是已知至少 …

With the advent of the USASOC URGI, that quintessentially American silhouette has changed forever. The Geissele Super Modular Rail MK16 handguard, hammer forged barrel, and mid …

The Geissele USASOC 14.5" Improved Complete Upper receiver lets shooters put a custom take on the Upper Receiver Group Improved (URGI) being adopted by the United States Army …

The URG-I stripped upper increases the capability of the platform, with the inclusion of the Geissele Super Modular Rail MK 16 handguard, cold hammer forged, chrome-lined barrel, and …

The URG-I complete upper receiver includes a 14.5" GOV profile, Hammer Forged, ChromolyV, Chrome-lined barrel, with a 1:7" twist and includes a Surefire 4 Prong SF4P Flash Hider. The …

The USASOC URGI is a near-clone of the upper receiver group currently in service with USASOC. SPECIFICATIONS: OVERALL LENGTH: 24 1/4" WEIGHT: 4 lbs 3 oz; CALIBER: …