Huldra's Adams Arms Piston System uses the same gas port on the barrel to work the action of our inverted piston.

Instead of directing the gases into the receiver, they go into a gas plug and drive rod sleeve. The gases are contained inside the drive rod sleeve and push the bolt carrier rearward using the gas pressure to cycle action.

Once the action is cycled the remaining gases are pushed out of the front of the gas block, purging the system and keeping the gases out of the face of the user and the receiver.

The end result is a firearm that functions and feels like an AR15/M16 but burns cooler, cleaner, and is more reliable. The Huldra Mark IV has gone further than just a patented revolutionary operating system. All of the Adams Arms gas piston components are treated in today's most technologically advanced coating process on the market. The gas piston system and block are Melonited and the bolt carrier is ion bonded. All of the Piston System parts that operate this rifle come with a lifetime warranty.


Huldra Mark IV 5.56x45 Carbine Base Rifle
Price:
$999.99

Mark IV 5.56x45 Carbine Base Rifle
Caliber - 5.56 x 45
Chamber - 5.56 Nato
Barrel length - 16 inch
Barrel twist - 1 to 7 right hand, M4 feed ramps
Barrel profile - M4 Contour
Barrel material - Chrome-Moly-Vanadium 4150
Barrel coating & lining - Melonite
Upper receiver - Dry film lubed, T-marked
Gas system - carbine
Trigger - single stage
Stock - Mil-spec 6-position tactical butt stock
Grip - A2
Fore arm - M4 hand guards
Flash hider - A2 flash hider
Overall retracted length - 32-5/16 inch
Overall extended length - 35-9/16 inch
Weight: Approximately 6 pounds
Shipping Dimensions: Approximately 39 x 14 x 4 inches.




Huldra Mark IV 5.45x39 Carbine Base Rifle
Price:
$1,049.99

Mark IV 5.45x39 Carbine Base Rifle
Caliber - 5.45 x 39
Chamber - 5.45 Russian
Barrel length - 16 inch
Barrel twist - 1 to 8 right hand, M4 feed ramps
Barrel profile - M4 Contour
Barrel material - Chrome-Moly-Vanadium 4150
Barrel coating & lining - Melonite
Upper receiver - Dry film lubed, T-marked
Gas system - carbine
Trigger - single stage
Stock - Mil-spec 6-position tactical butt stock
Grip - A2
Fore arm - M4 hand guards
Flash hider - Melonited A2
Overall retracted length - 32-5/16 inch
Overall extended length - 35-9/16 inch
Weight: Approximately 6 pounds
Shipping Dimensions: Approximately 39 x 14 x 4 inches.



Huldra 5.56x45 X-Pre 1 Rifle
Price:
$1,999.99


5.56x45 X-Pre 1 Rifle
Caliber - 5.56 x 45
Chamber - 5.56 NATO
Barrel length - 16 inch
Barrel twist - 1 to 8 right hand
Barrel profile - MED contour fluted
Barrel material - 416 stainless steel
Barrel coating & lining - SS raw & SS
Upper receiver - Dry film lubed
Gas system - mid-length
Trigger - 4.5 lb. JP single stage
Stock - Vltor IMod Mil-spec
Grip - Ergo Ambi
Fore arm - Monolithic fluted
Rail - 18.5 in. overall L x 1.6 in. W x 2.45 in. H
Flash hider - Adams Arms compensator
Overall retracted length - 32-7/8 inch
Weight: Approximately 7 pounds
Shipping Dimensions: Approximately 39 x 14 x 4 inches.




Huldra Mark IV 5.56x45 Tactical Elite Rifle
Price:
$1,499.99



Mark IV 5.56x45 Tactical Elite Rifle
Caliber - 5.56 x 45
Chamber - 5.56 NATO
Barrel length - 16 inch
Barrel twist - 1 to 7 right hand, M4 feed ramps
Barrel profile - Government Contour
Barrel material - Chrome-Moly-Vanadium 4150
Barrel coating & lining - Melonite
Upper receiver - Dry film lubed, T-marked
Gas system - mid-length
Trigger - 4.5 lb. JP single stage
Stock - Vltor IMod Mil-spec with Ergo Ambi grip
Fore arm - Free float extended Quad rail, 1913 Mil-spec, 6061 T6 aluminum
Rail - 12 in. EXP L x 2.2 in. W x 2.45 in. H
Flash hider - A2 flash hider
Overall retracted length - 32-1/4 inch
Overall extended length - 35-1/2 inch
Weight: Approximately 7 pounds
Shipping Dimensions: Approximately 39 x 14 x 4 inches.


Available exclusively at Mills Fleet Farm! Call 877-633-7456 to order your Huldra Mark IV Firearm or Order online at www.FLEETFARM.com