LUTH RKB201

Build a Complete 20" Fluted Bull Barrel, AR Kit. This kit contains everything you need to build your own AR except the stripped lower receiver.
The Kit Contains:
Fully assembled 20" Fluted Bull Barrel Upper with 15" Keymod Palm Handguard
Your choice of either an MBA-1 Buttstock Assembly or MBA-3 Buttstock Assembly
Complete Lower Parts Kit
Add to your build with optional add-on parts such as a Velocity Drop-in trigger, or The Lower Enhanc-AR Kit.
This Kit does not come with the lower receiver. You will have to supply a lower receiver purchased elsewhere. We recommend that you look for a Mil-Spec stripped lower.
Includes:
Your choice: MBA-1 Fixed Rifle Buttstock assembly or MBA-3 Adjustable Carbine Buttstock Assembly
LLRPK-1 Complete .223/5.56 Lower Receiver Parts Kit
Assembled Complete 20" Fluted Bull Barrel Upper:
HG-V-15K Palm Handguard Vented 15" KeyMod with Barrel Nut
BL-B18FT 20" Bull Barrel, Fluted, Threaded 416 SST
FTT-EA1 A3 Upper Receiver Assembled
BC-A-223 Fully Assembled Bolt Carrier .223
BL-04 Rifle Length Gas Tube
GB-LP936 Gas Block .936
BL-06-A2 A2 Flash Hider
Barrel Specs:
20" Fluted Bull Barrel
.223 Rem
416 SS
Threaded Barrel Thread Pitch 1/2 x 28
Gas Block Diameter .936
Gas Tube Length 16" Carbine, 18", 20", and 24" are Rifle
1-9 RH Barrel Twist
6 Lands and Groves
M4 Feed Ramp
Button Broached