KAK 17-5.56 Complete AR15, 18" Barrel, 15" MLOK

Upper

• Barrel Length-18”
• Barrel Material- 416 R, Stainless, bead blasted matte grey
• Chamber 17-5.56 KAK
• Twist Rate 1:9
• Muzzle Device SAW Flash Hider
• Extension- M4
• Gas System- Rifle length
• Gas Block- Low profile .750 Phosphate Finish
• Charging Handle- Milspec with Enhanced Large Billet Latch
• Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
• Handguard- 15”, High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut

BCG

• M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, chrome lined phosphate finish 
• Bolt is machined from a single piece aircraft/bearing quality 9310 steel, heat treated properly, precision ground, Shot Peened and MPI’d, chrome lined phosphate finish 
• Firing pin is machined to the mil-spec print from 8740, precision ground, and chrome plated
• One Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistance
• S7 tool steel ejector and extractor retaining pin
• 4130 Gas Key, precision staked using our hydraulic staking machine
• KAK Carrier Key Screws- T25 drive, Grade 8, Properly Heat Treated and staked

Lower

KAK Industry billet AR15 lower receiver is precision CNC machined from a solid block of high quality aircraft grade aluminum. All internal dimensions are cut to the proper military dimensions. Full M4/M16 spec fire control pocket.  All receivers are media blasted and have a deep lustrous hard coat anodizing. Machined from a solid block of aircraft quality aluminum

• Full M4/M16 style fire control group pocket
• Pictogram selector markings on both sides
• Accepts all standard/Milspec AR15 components
• Compatible with drop in trigger assemblies
• Tumbled, deburred, media blasted
• Caliber:  MULTI
• Type 3 Class II hard coat anodized - deep matte black
• Fire Control Group- Milspec
• Buffer Tube- 7075 Milspec tube, 6- Position Adjustable
• Grip- A2
• Stock- M4

Includes 1x 30 Round GI Magazine (where applicable)

All KAK complete firearms are test fired for feed and function using commercially loaded ammunition

"How Long will my barrel last" is a question we get a lot, the fact of the matter is that we don't know as we have not been able to burn out a barrel, even with it's heavy firing schedules. Take our original prototype barrel which has been used internally for over a year now. It is well abused and used, more than 2000 rounds through it, all screamers, along with full auto use,  not to mention we did all of or pressure testing data with this barrel which far exceeds recommended load data. This barrel still shoots TINY groups. There are hundreds of these barrels on the market, no one has "burned out a barrel"

KAK Custom

For load data you must use dropbox to open- DOWNLOAD 17-5.56 Reloading Data