Geissele Automatics, Reliability Enhancement Kit (REK), H2
The Geissele Super Select-Fire trigger. 2 Stage (Single Stage in Full Auto) 1st Stage Weight:2.5lbs. 2nd Stage Weight: 2.0lbs. Total Pull Weight: 4.5lbs. Full Auto Mode: 6.0lbs. Pull Weight (Single Stage) Adjustable: No Recommended Use: Law Enforcement, Military Pin Size: Mil-Spec All weights are approximates. The Geissele Super Select-Fire (SSF®) Trigger is a select-fire combat trigger that Geissele Automatics developed for the U.S. Special Operations Community.
The SR-15 E3.2 Enhanced Bolt features a number of components designed to exceed expectations for durability and service life, even when exposed to extreme and unrelenting conditions. Dual ejectors considerably mitigate wear and prolong lifespan compared to the legacy single ejector, delivering sustained ejection force to the case head due to strategic ejector placement. A vibration-dampening o-ring works synergistically with the extractor, ensuring a constant and positive force of the extractor claw against the case rim throughout the extraction and ejection processes. Stress relief features incorporated into the lugs significantly extend the service life. Its radiused lugs and reduced diameter cam pin hole render it the most durable AR-pattern bolt known to date. The dual-spring extractor, featuring improved leverage, adeptly resolves extractor durability and operational issues commonly encountered with short-barreled carbines. It is a proprietary bolt designed specifically for use in SR-15 and SR-16 rifles.
E3.2 Enhanced Bolt Features
Dual Ejectors – Provides more positive ejection for increased reliability with suppressors.
Enlarged Bolt Face – Provides more positive engagement in the chamber and ensures proper seating upon cycling.
Rounded Bolt Lugs – Less prone to chipping or cracking than traditional square lug designs.
Reduced-Size Cam Pin – Allows for a thicker bolt web, strengthening a common failure point in the AR-15 bolt design.
Enhanced Reliability Extractor – Shaped like a “T” this extractor’s pivot point is shifted forward to apply constant pressure on the case rim and reduce extraction failures. Its dual extractor springs provide a fail safe in the event that one fails during hard usage.
The E3.2 bolt is only compatible with SR-15s and KAC E3 barrel extensions.
Package Contents:
The 7.62 QDC OPEN BRAKE KIT, 3/4″-24 TPI, developed for 7.62/6.5 platforms.
It accepts KACs QDC line of sound suppressors, includes 7 piece shim set and Rocksett Dose 3/4″-24 thread
Compatible with Knight’s Armament SR25, does not fit most .308 rifles which use 5/8″-24 thread.
GEISSELE AUTOMATICS, Reliability Enhanced Bolt Carrier Group, 5.56mm
Geissele Automatics, Super MPX SSA, M4 Curve Bow
Geissele Automatics, SSA-E X – Trigger
(SCAR) Geissele Super Scar Trigger – 2 stage (1st Stage 2.5 lbs and 2nd Stage 1.5 lbs), Mil-Spec pin
Geissele Automatics, Super MCX SSA, M4 Curve Bow
Polymer lower for USW-320, Black With Stock Kit
(BT-430174-K)
Includes multiple selector options. Choice of any combination of short/long, left/right side selectors. Semi-flush indicator that provides visual indication of the rifle’s firing mode only.
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. 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. It is not suggested to use this rail with a 14.5″ or shorter barrel unless using a muzzle device such as the AAC flash hider which can be installed from the end with a tool.
Non-NFA device directs blast concussion away from areas left and right of shooter’s firing position
Precision-machined of rugged stainless steel, heat treated and coated with a durable Cerakote™ finish
SureFire SOCOM Fast-Attach® adapter mount provides fast, easy attachment and removal
Blast Forward. The SureFire Warden Blast Regulator for 5.56 and 7.62 mm weapons is engineered to direct the concussive blast of the fired round forward of the weapon system without venting gas to the side, as seen with standard muzzle brakes. This aids in reducing the overpressure felt by others immediately to the left and/or right of the shooter’s firing position. It also limits any dust signature from the weapon when fired from a prone position. This version of the Warden quickly and easily mounts to any SureFire SOCOM Fast-Attach® 5.56 or 7.62 muzzle device through the same patented system found on SureFire SOCOM Fast-Attach® Series suppressors. Unlike sound suppressors, Wardens are not NFA devices and are available wherever SureFire products are sold, without any of the restrictions associated with suppressors.
Non-NFA device directs blast concussion away from areas left and right of shooter’s firing position
Precision-machined of rugged stainless steel, heat treated and coated with a durable Cerakote™ finish
SureFire SOCOM Fast-Attach® adapter mount provides fast, easy attachment and removal
Blast Forward. The SureFire Warden Blast Regulator for 5.56 and 7.62 mm weapons is engineered to direct the concussive blast of the fired round forward of the weapon system without venting gas to the side, as seen with standard muzzle brakes. This aids in reducing the overpressure felt by others immediately to the left and/or right of the shooter’s firing position. It also limits any dust signature from the weapon when fired from a prone position. This version of the Warden quickly and easily mounts to any SureFire SOCOM Fast-Attach® 5.56 or 7.62 muzzle device through the same patented system found on SureFire SOCOM Fast-Attach® Series suppressors. Unlike sound suppressors, Wardens are not NFA devices and are available wherever SureFire products are sold, without any of the restrictions associated with suppressors.
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.
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 Knights 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. The 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, Knights Armament Company demonstrates its continuing determination to intelligently design effective products.
Two QD sling swivel sockets built in at the rear of the rail. Includes shim kit and installation wrench.