Krause Arms is proud to offer our NEW Gen4 Service Carbine.   At Krause Arms we believe in Quality Mil-spec or better parts. We believe here is no substitute for quality and that your firearm should be built right the first time and ready for extreme hard use right out of the box.  Providing you with the highest quality and most accurate barrels, quality Bolt carrier groups, and everything it takes to give you a combat grade weapon. 

  We believe in our products and stand behind them 100% with our LIFETIME WARRANTY.  Our weapons are meant to be ran hard and allow you to feel comfortable to go into harms way, they won't let you down...

KA-15 Service (Black Anodize Only)

SKU: KA-15-S
KA-15 Service STD Calibers
Handguard's (Rail)
  • Receiver set :

    7075 T6 forged aluminum (Cardinal forgings)

    Barrel :

    • are made from premium barrel (machine gun) steel, 4150 Chrome-Moly-Vanadium steel certified to Mil-B-1159E , heat treated, air gauged and stress relieved for high accuracy with 5r button rifling. Sub moa Gauranteed, maintains under 2 moa at 30,000 rounds! 


    Quad Rail: (accommodates most suppressors on the market)

    6061-T6 Aircraft Aluminum
    Bead Blasted Type III Class II Black Anodized
    CNC machined mil-spec 1913 picatinny rails
    Free floated design
    Interior Diameter of 1.8" inches
    self indexing rail lock


    Slim Mlok:

    6061-T6 Aircraft Aluminum
    Bead Blasted Type III Class II Black Anodized
    Free floated design
    M-LOKs mounting system at 3, 6 & 9
    Picatinny on the top of the rail for optic mounting
    Interior Diameter of 1.3" inches
    Self indexing rail lock

    Gas Block:

    .750" Inside Diameter
    Made out of 4150 Barrel Steel

    Bolt carrier group:

    Individually MPI Tested
    Bolt: 158 carpenter steel, Shot Peened, and MPI tested.
    Carrier: 8620 Tool Steel-(M16 full shroud)-Heat Treated, Case Hardened.
    Gas Key: Grade 8 Hardened Fasteners, Permatex No. 3 sealed, Torqued to 60 in lbs, & Staked.
    Cam Pin: 4340 Steel-Heat Treated & Phosphated
    Extractor: Tool steel S7-Heat Treated to 48-53 Rockwell C & Phosphated


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