Genuine HK MR556 Heavy Profile Barrel
Removed from a brand new, unfired MR556 and sent to Nefarious Arms
Cut, re-crown, pin/weld, slightly reduced diameter behind gas block (approx 3mm) to reduce weight but still keep it a heavy profile and refinished. All work was done by Nefarious Arms.
OAL is 16.1 inches.
Genuine HK slimline gas block and barrel nut.
Muzzle device is a Dead Air Flash Hider (Keymo)
Waited several months to get this back.
$1,100
(+30 shipped with US48)
Removed from a brand new, unfired MR556 and sent to Nefarious Arms
Cut, re-crown, pin/weld, slightly reduced diameter behind gas block (approx 3mm) to reduce weight but still keep it a heavy profile and refinished. All work was done by Nefarious Arms.
OAL is 16.1 inches.
Genuine HK slimline gas block and barrel nut.
Muzzle device is a Dead Air Flash Hider (Keymo)
Waited several months to get this back.
$1,100
(+30 shipped with US48)

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