HK 81000828 MR556 A4 5.56x45mm 10+1 16.50" Black Threaded BBL, Black Pic Rail, M-LOK Handguard, 6 Position Black Synthetic Stock, Ambidextrous,Tactical Rifles

The MR556 A4 short-stroke gas piston operating system does not impart hot carbon fouling back into the action, allowing the weapon to run longer, with less maintenance and with less wear on internal components. Its adjustable gas regulator allows the operator to tune the action specifically for suppressed or unsuppressed operation. Fully ambidextrous controls, lighter weight and a slimmer profile make the new A4 easier to operate, manipulate and employ.

Handguard Finish:	Black
Weight:	7.67 lbs
Receiver Description:	Picatinny Rail
Barrel Finish:	Black
Model:	MR556
Thread Pattern:	5/8"x24
Barrel Length:	16.50"
Safety:	Ambidextrous Safety Lever
OAL:	36.50"
Capacity:	10+1
Action:	Semi-Auto
Trigger Pull Weight:	4.50-5.60 lbs
Receiver Finish:	Black
Metal Finish Group:	Blued/Black
Max Capacity:	10
Sights:	None
Barrel Description:	Threaded
Stock Finish Group:	Black
Height:	7.50"
Weight Range:	7 lbs to 7.99 lbs
Stock Description:	6 Position
Stock Material:	Synthetic
Caliber:	5.56x45mm
Operating System:	Gas Piston
Twist:	1:7"
Stock Finish:	Black
Width:	3.07"
Handguards:	M-LOK
Series:	A4
Hand:	Ambidextrous
Barrel Material:	Steel
Grooves:	6