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Adams Arms 5.56 PDW Base 7.5" Piston Upper AR15 Pistol AR-15
Adams Arms 5.56 PDW Base 7.5" Piston Upper AR15 Pistol AR-15
 $777.34  $619.00 
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Primary Weapons 9" 300BLK Upper PWS Keymod Rail Triad Blackout [MK109-300BLK] $1,449.95
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Primary Weapons 9" 300BLK Upper PWS Keymod Rail Triad MK1 Blackout

Build easily as a pistol or Short Barreled Rifle (SBR) with proper license (all NFA rules apply to SBR).MAY BE MOUNTED TO PISTOLS OR REGISTERED SBR LOWERS ONLY

No lower included. May be shipped to your door, no FFL required. NEVER PUT THIS ON A RIFLE LOWER THAT IS NOT A REGISTERED SBR!   Be aware of your LOCAL, STATE, and FEDERAL LAWS before ordering. Not for sale to HI.

Quieter than a pellet gun when suppressed with subsonic ammunition, and packing a punch unsuppressed with supersonic ammunition, the MK109 upper is a favorite in applications ranging from defense to hunting. Due to its specialized nature, the MK109 does not feature an adjustable gas block. The PWS long-stroke piston system combines the agility of the AR-15 with the reliability of the AK-47 into a sleek and efficient design.

Smooth Recoil Impulse

A floating piston head, detachable for charging handle replacement, is attached directly to the operating rod, which in turn is securely attached to the carrier. With only one moving assembly, the PWS long-stroke piston system offers a lighter recoil impulse, while at the same time providing increased longevity and durability.

QPQ ISONITED BARRELS
Utilizing only the highest quality chromoly barrel blanks, MK1 barrels are turned in house then Isonite QPQ treated for hardness and corrosion resistance.PWS engineers designed a barrel profile that reduces weight without decreasing accuracy.

Bolt Carrier Group
PWS bolt carrier groups are machined from tool steel at strict tolerances, then nickel-Teflon coated for durability and to reduce friction.
PWS engineers increased carrier mass to extend dwell time and delay unlock. As a result the PWS bolt carrier group allows chamber pressure to be greatly reduced for easier extraction.Gaps and channels between skid pads allow for fewer points of contact. This results in less friction and keeps debris from interferring with function.

Free-Floated Handguards
PWS engineers designed a handguard which is ergonomic as well as durable. Featuring the KeyMod interface, the MK1 series handguard eliminates unnecessary weight and allows for a wide range of accessory placement.Extruded and then machined from aircraft grade 6061 aluminum, every handguard comes standard with a full-length Picatinny top rail and two 2 inch Picatinny sections.Integral sling swivel attachment points round out the front and back of the handguard.The KeyMod Interface System was developed for multiple accessory compatibility without the need for Picatinny rails surrounding your handguard. This improved design enhanced the rail’s comfort and functionality without sacrificing strength and durability.Understanding the importance of an ultra-reliable package that is as light as possible, mil-spec 7075 aluminum forgings are used for the upper receivers. Each upper is meticulously CNC-machined for perfect fit and function.After machining and blasting, all aluminum parts are Hardcoat Annodized at Type III Mil-Spec, for corrosion and wear resistance.

Weight: 5 lbs
Dimensions: 28 x 4 x 4 in
Caliber: 300 BLK
Muzzle Device: Triad 30

This product was added to our catalog on Thursday 09 July, 2015.
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Guntec USA AR15 Pistol HIGH POLISH Air Light M-LOK Set Chrome
Guntec USA AR15 Pistol HIGH POLISH Air Light M-LOK Set Chrome
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