Based on the supremely popular 737R, the Impact Short Action NBK brings you everything you love about Impact's flagship 737R in a lighter weight setup ideal for your next hunting rifle. The Impact Short Action NBK utilizes the same barrel tenon/headspace specs as the 737R and can readily accept 737R pre-fit barrels. 

 Some of the features of the Short Action NBK:

• The one-piece bolt is designed with proper geometry and clearance to allow smooth operation under field conditions.
• Fluting on the top and sides of bolt body carry dirt away while a smooth bottom portion ensures smooth cycling.
• Black carbon nitride finish improves operation by increasing surface hardness and lubricity.
• EDM Cut Raceway
• Hardened and finish machined Steel Action body
• Utilizes a Rem 700 Short Action foot print, and works with Rem 700 Triggers
• Features a 75 or 90 Degree, two lug design, and interchangeable bolt knobs
• Uses 1-1/16 x 16 TPI Class 3 tenon threads, and weighs 30.5 ounces
• Will feed up to 2.960 OAL rounds, and is cut for AW & AICS mags
• Trigger Hanger allows for easier field maintenance of the trigger
• The length of the front pic rail is 1.865 and 1.765 for the rear
• Available in either .308, Magnum, ARC, or .223 bolt faces 
• Has a 20 MOA, split integral rail, and integral recoil lug 
• Has a .700 Diameter bolt, with a Mini M16 extractor
• The SA NBK will not work with BDL hardware.