HANDGUNS
Heckler and Koch (HK USA)
Heckler and Koch (HK USA) MR556 A4
MR556 A4 5.56 11" 30+1 GRY
$3,749.00
Out of Stock
FFL TRANSFER REQUIRED. This firearm ships to your selected FFL dealer.
You'll complete a 4473 and background check at pickup. Most transfers cost $25–50 at the
local FFL. You'll select your dealer at checkout.
— Overview
MR556 A4 5.56 11" 30+1 GRY. Features: Short Stroke Gas Piston, HK416 Upper Receiver, M-LOK Handguard.
— Specifications
Built to Spec
Manufacturer
Heckler and Koch (HK USA)
Family
MR556 Series
Model
MR556 A4
Item Number
HK81001312
UPC
642230272026
Caliber
223 Rem | 5.56 NATO
Action
Semi-Auto
Capacity
30 + 1
Barrel Length
11"
Rate of Twist
1-in-7"
Thread Pattern
1/2x28
Total Length
26.5"
Weight
6.61 lbs.
Finish
Gray Cerakote
Finish Type
Applied Finish
Grip Type
HK Endanced Ergonomic Grip
Stock/Grips
Collapsible / Folding Stock HK Endanced Ergonomic Grip
Sights Type
None
Sights
No Sights
Special
Threaded Barrel