HK 81001202 MR556 A4 5.56x45mm 10+1 11" Black Threaded BBL, M-LOK Handguard, Patriot Brown Pic Rail Rcvr, Black Synthetic 6 Position Stock, Black Polymer Grip, Ambidextrous,Tactical Pistols

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.

Caliber:	5.56x45mm
Stock Material:	Synthetic
Stock Description:	6 Position
Height:	7.50"
Weight Range:	6 lbs to 6.99 lbs
Twist:	1:7"
Stock Finish:	Black
Grips:	Black Polymer
Operating System:	Gas Piston
Handguards:	M-LOK
Series:	A4
Barrel Length Range:	11" to 11.99"
Width:	3.07"
Barrel Material:	Steel
Grooves:	6
Hand:	Ambidextrous
Model:	MR556
Barrel Finish:	Black
Weight:	6.61 lbs
Receiver Description:	Picatinny Rail
Capacity:	10+1
Action:	Semi-Auto
Safety:	Ambidextrous Safety Lever
OAL:	26.50"
Thread Pattern:	5/8"x24
Barrel Length:	11"
Sights:	None
Barrel Description:	Threaded
Max Capacity:	10
Receiver Finish:	Patriot Brown
Trigger Pull Weight:	4.50-5.60 lbs