URX 4 The URX 4 is a continuous top-rail system that utilizes the Keymod mounting brackets developed by Vltor and Noveske. This rail system is built stronger and more stable than previous designs due to the absence of a removable bottom rail. The modular layout allows an end user to fully customize exactly where to place accessories without the use of specialized tools, small parts, or additional forces applied to the barrel. URX 4 includes two QD sling swivel sockets at the rear of the rail. The URX 4 is currently available for 5.56 rifles in 8.5″, 10″, 10.75″, 13″, and 14.5″ lengths, and is equipped with Knight’s unique IBN mounting configuration. The idea was to create a more modular, and thus more serviceable, rail system that still maintains its strength and stiffness. Th IBN system torques the rail onto the weapon and allows the rail to act as the barrel nut.
This design was developed to increase stabilization and provide a simpler solution that requires less specialized tools to install and maintain. A full array of modular accessories, iron sights, and panel kits utilizing the Keymod mounting brackets have been developed specifically to accompany this rail system. With the introduction of the URX 4, Knight’s Armament Company demonstrates its continuing determination to intelligently design effective products.
Adaptor M4 Foldable Complete
(BT-361415)
Includes:
BT-361409 Stock Adaptor
BT-36320 Recoil Buffer
BT-36311 Recoil Buffer Pin
BT-36315 Sticker
BT-20564 M4 Tube Adaptor Foldable (1 3/16″-16 UNR)
BT-36307 Stock Release Button Spring
BT-20169 Stock Release Button
BT-36314 Folding Stock Axle Screw
BT-22276 Sling Attachment Loop
11.5″ Geissele Cold Hamer Forged, Chromolly Steel, Chrome Lined, Manganese Phosphate Finished, 1/7 twist, Carbine gas, 1/2 x 28 threads, 5.56 Barrel – Gov Profile, single dimple for gas block set screw
14.5″ Geissele Cold Hamer Forged, Chromolly Steel, Chrome Lined, Manganese Phosphate Finished, 1/7 twist, Mid-Length gas, 1/2 x 28 threads, 5.56 Barrel – Geissele Taper Profile, single dimple for gas block set screw
MIDWEST INDUSTRIES, Gen2 Extended AK47/74 Universal Handguard, M-LOK(TM) Compatible, MRO Topcover
Geissele Super 700 2 Stage (for Remington 700 and R700 compatible actions)
Midwest Industries, TWO PIECE AR15 FREE FLOAT M-LOK HANDGUARD Installs on GI barrel nut (not included with handguard) Monolithic continuous top rail Five anti-rotation QD sockets for push button swivels Lightweight with extremely solid lock up Constructed from Hard Coat Anodized 6061 Aluminum Extends past the front sight tower to allow additional space for mounting accessories Width: 1.840” Height: 2.17” Made in the USA
Lewis Machine & Tool Co Standard Full Auto Bolt Carrier Group, 5.56
LMT Defense has made the full-auto M16/M4 BCG and its components for the US DoD for decades. The L7D3 is the perfect BCG for a Mil-Spec build or upgrade from sub-par equipment. Works well with both suppressed and unsuppressed weapon systems.
Geissele Super Dynamic (Enhanced) Trigger: 2 Stage (1st Stage 2.3 lbs, 2nd Stage 1.2 lbs), Mil-Spec Pins
Super Semi-Automatic Enhanced (SSA-E) Trigger: 2 Stage (1st Stage 2.3 lbs, 2nd Stage 1.2 lbs), Mil-Spec Pins
Geissele Super Semi-Automatic trigger is a semi-automatic only version of the Geissele Automatics Super Select-Fire trigger. The SSA® is a 4.5 lb. non-adjustable precision combat trigger and allows precise and accurate trigger control.
Geissele Super Semi-Automatic trigger is a semi-automatic only version of the Geissele Automatics Super Select-Fire trigger. The SSA® is a 4.5 lb. non-adjustable precision combat trigger and allows precise and accurate trigger control.
Super Semi-Automatic Enhanced (SSA-E) Trigger: 2 Stage (1st Stage 2.3 lbs, 2nd Stage 1.2 lbs), Mil-Spec Pins
Super 3 Gun Trigger – Single Stage (3.25 lbs or 4 lbs), Mil-Spec pins
Geissele Automatics, Super Speed Precision M4 Curved Bow, Black Finish