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PVAR System for AR15, M16 and M4 Type of Rifles

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  • PVAR
  • Philippines
  • PVAR System
Post Date : May 27
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Item specifics

PVAR
Philippines

Specifications

Pneumatic Valve and Rod system for AR type rifles

The UDMC® Pneumatic Valve and Rod (PVAR) System (Patent Pending)

The UDMC PVAR System executes the replacement of the operating assembly of the conventional AR, M16, M4 and similar rifles. Where in the Direct Gas Impingement System pressurized gas is used throughout the operating cycle, the UDMC PVAR System utilizes instead mechanical energy for a more effective and more reliable cycling.


The UDMC PVAR System prevents much heat, carbon, unburned powder,and dirt from being deposited inside the bolt and the bolt carrier group resulting to cleaner operation, less downtime for cleaning and repair and, considerably longer life span of the rifle.


Reduced Field Maintenance.  Our PVAR system eliminates the constant cleaning requirements of the AR, M16, M4and similar rifles in the field. Where the conventional design requires general cleaning of the operating parts every so often, our rifles require minimal cleaning (or just check-up) of up to 1,000 to 2,000rounds, certainly much more volume of fire in between cleanings if compared with conventional direct gas-operated rifles.


Reduced Rate of Fire.  Rifles that are retrofitted with our PVAR System have a reduced rate of fire(approximately from 900-950 rounds per minute down to 650 rounds per minute).  This slower rate of fire results to operating cycle reliability and firing accuracy of the rifle in the hands of even a newly-recruited light-to-medium framed soldier, regardless if the barrel rifling twist is 1x7, 1X9 or 1x12, and regardless if the ammunition used is 55 grains (M193) or 62 grains (M855). In other words, our design has greater flexibility, reliability and accuracy than the conventional gas-tube designs and even in comparison with the other gas-piston generic designs from other countries that are being sold supposedly as drop-in kits.


Optimum Flexibility and Improved Accuracy through a Floating Barrel Design. Our rifles were designed with enhanced accuracy in mind through our proprietary one-piece quad rail hand guard with military-specs picatinny rails mounted on a round 20-hole barrel lock cum hand guard mount. The one-piece quad rail hand guard enables a true floating-barrel that greatly aids in the consistency and accuracy of the fired round since the hand guard was designed not to touch any part of the barrel at any point along the barrel's length. The barrel is mated to the rifles upper receiver through the 20-hole barrel lock which also holds the hand guard securely in place such that the barrel now "floats freely"without any contact with other rifle parts other than the rifle's barrel extension which is securely attached by the barrel lock to the upper receiver near the chamber. This minimizes mechanical pressure,distortion, and vibration throughout the length of the barrel when around is fired.


Reduced Wear and Tear and Extended Rifle Lifespan.Our PVAR System uses a new top railed gas block with mil-specs picatinny rails which houses the valve. In conjunction with the rod and spring, the whole assembly impacts a reinforced bolt carrier assembly where the old gas key is replaced with a solid key of extremely hardened metal which accommodates the impact of the rod (of the same hardened metal) and strikes it by about ¾ of an inch.


Easier Take down and Assembly.  Our PVAR system can be easily removed from the front of the gas block,taken-apart, cleaned, and reassembled in the field in a matter of seconds, unlike the conventional gas-tube and gas-piston designs which require the removal of the hand guard with special tools for proper dismantling and cleaning or replacement of parts and which will take several minutes to dismantle and re-assemble.


Currently, the UDMC Pneumatic Valve and Rod (PVAR) System is available for the M16 and M4 caliber 5.56mm variants with the following barrel lengths, 7.5, 11.5, 14.5 and 20 inches.  Under development are the PVAR rifles for the 7.62mm NATO, 6.5mm Grendel and 6.8mm SPC calibers.


For more info, visit udmc-weapons.com.

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