HK 81001203 MR556 A4 5.56x45mm 30+1 16.50" Black Threaded BBL, Patriot Brown Pic Rail Rcvr, 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.

Barrel Material:	Steel
Grooves:	6
Hand:	Ambidextrous
Handguards:	M-LOK
Series:	A4
Width:	3.07"
Operating System:	Gas Piston
Twist:	1:7"
Stock Finish:	Black
Stock Description:	6 Position
Height:	7.50"
Weight Range:	7 lbs to 7.99 lbs
Caliber:	5.56x45mm
Stock Material:	Synthetic
Metal Finish Group:	Blued/Black
Max Capacity:	30
Trigger Pull Weight:	4.50-5.60 lbs
Receiver Finish:	Patriot Brown
Sights:	None
Barrel Description:	Threaded
Stock Finish Group:	Black
Safety:	Ambidextrous Safety Lever
OAL:	36.50"
Thread Pattern:	5/8"x24
Barrel Length:	16.50"
Capacity:	30+1
Action:	Semi-Auto
Barrel Finish:	Black
Receiver Description:	Picatinny Rail
Weight:	7.67 lbs
Model:	MR556
Handguard Finish:	Black