Personal Defense Weapon

MK1 MOD1 PDW 556

Product Sheet Download

The RD MK1 MOD1 PDW 556 is a 6.5” SBR available in 5.56
NATO or .300 Blackout. Equipped standard with our RD
XPD Suppressor, Premium Battle Arms Development RACK® Ambi
Charging Handle, Battle Arms Development VERT Stock, B5 Grip,
Nickel Teflon Single Stage trigger,
ambi selector, enhanced trigger guard
and optional Griffin Armament M2 Iron Sights,

All of our MK1 MOD1 series carbines are installed with
our patented threaded straight gas tube and gas block
to eliminate gas leakage and help reduce recoil.

Breathable Technology


UPC: 814034027441, 814034027458

Instruction Manual View all Products
Barrel Length 6.5’’
Barrel Material 4150 Chromoly
Barrel Finish Melonite
Barrel Thread Pitch 1/2x28 (5.56) - 5/8x24 (.300BLK)
Chamber 5.56 or .300BLK
Twist Rate 1:7 (5.56) - 1:8 (.300BLK)
Barrel Extension M4 feed ramps
Gas System Direct Impingement - pistol length
Gas Block Type .750” Patented low profile gas block and threaded gas tube
Muzzle Device 6” dedicated suppressed system with direct thread 3D printed RD XPD suppressor
Sights Griffin Armament M2 Iron Sights
Upper Receiver Material Forged 7075 T6
Upper Receiver Style Anti-rotation alignment Tab
Upper Receiver Finish Type III Anodizing
Forward Assist MIL-STD
Dust Cover MIL-STD
Handguard Type Free Float MLOK/Hybrid 1913
Handguard Style Integrated alignment tab with upper receiver
Handguard Length 7”
Charging Handle Battle Arms Development RACK Ambi Charging Handle
Lower Receiver Forged 7075 T6
Lower Receiver Finish Type III Anodizing
Fire Control Group Nickel Teflon Fire Control Group
Grip B5 Grip and Magpul MVG
Stock Battle Arms Development VERT Buttstock System
Height 7.5”
Length 28.75” extended- 24.75” collapsed
Weight 6.65 LBS
Magazine 5.56mm 30 Round
MSRP $1,999.00