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16"  Legacy MK1 AR-15 SPR

16" Legacy MK1 AR-15 SPR

  • $1,699.99

The internal components of the Legacy MKI Series of weapons systems are metallurgically superior due to careful selection of the highest quality, ordinance-grade BOSS 416R Steel, which was developed to exceed NATO specifications for military use throughout the world. Superior heat treatment processes are applied to each and every part, ensuring maximum efficiency and function. The rifling is a proprietary design known as the Caudle 3 system. It is based on segments of arcs forming a polygonal shape that increases the velocity of the projectile, reduces friction and results in less bullet deformation.



Caliber 5.56x45 NATO
Weight 6.14 lbs (5.56)  |  7.0 lbs (300BO) 
Overall Length

36.37" | 33.25" Collapsed 

Upper Receiver MIL-SPEC 7075-T6, Type III hard coat anodized 
Lower Receiver MIL-SPEC 7075-T6, Type III hard coat anodized 
Barrel/Rifling 16" Barrel (1x8 Caudle 3 Groove) BOSS 416R
Bolt Carrier Group HPT/MPI Tested Black Nitride 
Charging Handle Extended Latch 
Gas System Carbine-Length
Muzzle Device Effin-A Mark II Compensator
Hand Guard 12" Free Float Rail
Stock/Grip Legacy Carbine MKI Stock and Adjustable Grip
Finish Shot Peened Black
Accuracy 1 MOA at 100YDS


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