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Available now in the 5.56 mm NATO chambering, other calibers will be offered shortly together with the MOD.1A featuring an adjustable gas system for use with suppressors.
 


LWD MOD.1 5.56 mm NATO UPPER RECEIVER ASSEMBLY

  • MSRP: $1,195.00
  • CALIBER 5.56mm X 45mm (5.56 NATO)
  • BARREL LENGTH 16" /14.5"/10.5"
  • RATE OF TWIST 1 in 7" / 1 in 8" / 1 in 9"
  • OVERALL LENGTH 23" (with 16 inch barrel)
  • FEEDING DEVICE Magazine; NATO STANAG
  • OPERATING SYSTEM Direct Gas Impinged Operating Rod, Forged One-Piece Carrier with Non-Rotational Technologies, (Non-Regulated) Closed Bolt
  • BOLT TYPE Multi-Lugged; AR15 Type High Performance Bolt
  • CHARGING DEVICE Central, Non-Reciprocating, Steel
  • RECEIVER CONSTRUCTION 7075 Forged Aluminum Hard Coat Anodized
  • FURNITURE QD Railed Aluminum Free-Float Front Handguard
  • FINISH Black Hard Coat Anodizing, Lindure surface Conversion

     

MOD.1 Upper Receiver Assembly

Brought to you by the same innovators, designers and OEM operating system manufacturers of the highly successful LWRC M6 and REPR series of weapons (U.S. Patent # 7,461,581) the Leitner–Wise Defense MOD.1 is a variable stroke, direct–gas op–rod, upper receiver assembly compatible with AR15 type lower receivers. The design of the MOD.1 operating system is such that it prevents hot propellant gasses and carbon from entering the receiver assemblies allowing the firearm to operate at cooler temperatures and reduced stresses.

The LWD MOD.1 upper receiver is designed to replace the traditional direct gas impingement operated upper receivers commonly supplied with AR15 type lower receiver assemblies. The MOD.1 upper will operate based on the fire control set–up of the lower receiver; i.e. with a semi–automatic lower receiver, the MOD.1 provide semi–automatic fire and with a fully–automatic lower receiver, the MOD.1 offers a select fire capability. Simply attach it to your lower receiver, mount your sights and you are ready to go!

The MOD.1 utilizes state–of–the–art materials, surface finishes and patent–pending technologies in its design and construction. Manufactured in–house, the simplified operating system comprises a one–piece operating rod and one–piece forged bolt carrier with all other controls and components being similar or the same as those found on the traditionally operated version. The patent–pending operating system does not rely on the propellant gases produced by the rifle cartridge to act directly upon the bolt in order to cycle the system, rather, that these gases impinge directly on the one–piece operating rod and then are vented at the front of the firearm away from the bolt group, fire control parts and the operator, via directional nozzles. The benefits of this system are that the heat from these gases are not directed into the working parts of the firearm which substantially reduces heat–fatigue induced parts failures. Venting the gases away from the working parts of the firearm reduces the amount of cleaning required and ensures that lubricants last longer. The MOD.1 is also supplied with one of our High Performance Bolts as standard.

The MOD.1 can be rapidly field stripped without tools; the quick release, return to zero, free–float UCR™ railed handguard can simply be removed by unlatching its locking lever; the operating system can be stripped by releasing the gas block lock nut and sliding the whole assembly forward without removing the handguard; the one–piece forged bolt carrier group is removed in the traditional manner.

All in all, the MOD.1 is an evolutionary approach to addressing the deficiencies of both the AR15 type traditional operating system and the newer piston driven derivatives, offering solutions to the operational and dynamic complexities of both.

Repeated testing by both internal and external engineers has confirmed all of the patent pending technologies employed in the MOD.1 and the simplified approach in the design and execution of the MOD.1 has resulted in manufacturing cost savings that are passed directly on to the end user. All MOD.1's come with the limited lifetime warranty we offer with all our products.

Leitner-Wise Defense, P.O. Box 25097, Alexandria, VA 22313 infoATleitner-wiseDOTcom ph-703.209.0556