556 10.3 INCH FSB CRANE SPEC PUA

$349.00$449.00

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SKU: U556103CSPUA Categories: ,

Description

ACI-15 556 Crane Spec Upper – 10.3 MK18 PARTIAL UPPER ASSEMBLY
Our 10.3″ ACI-15 556 Crane Spec Upper (Partial) receiver features the ideal gas port sizing (.070) to achieve minimal gas blowback when ran suppressed. This unit is specifically designed to be ran in conjunction with a silencer.
We do not guarantee reliable cycling with some manufactures ammunition without the addition of a silencer.
Our MK18 upper is shipped as pictured, just add your preferred silencer mount, drop in handguard, rear sight, M16 BCG and Charging Handle.

– 10.3″ 4150 CMV Melonite – 1/7 Twist – .070 Gas Port – M4 Feed Ramps – Carbine Length Gas System with F-Mark Front Site Base – Front Site & Sling Swivel – Delta Ring Assembly – QPQ Corrosion Resistant Finish – 1/2-28 Thread – Dry Film Lubed Upper w/ T-Markings – Forward Assist – Ejection Port Assembly

* (Not Included) Muzzle Device, Handguard, Standard Charging Handle & M16 BCG

Click Here for the Complete Crane Spec Upper

 

U556103CSPUA

Additional information

ADD BCG & CHARGING HANDLE

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