Picture of Sons Of Liberty Gun Works M4-89 5.56X45 NATO 13.7'' BBL 13'' M89 RAIL W/NOX BRAKE M489UPPER-13.7-556-B
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Sons Of Liberty Gun Works M4-89 5.56X45 NATO 13.7'' BBL 13'' M89 RAIL W/NOX BRAKE M489UPPER-13.7-556-B

Manufacturer: Sons OF Liberty Gun Works
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M4-89 5.56X45 NATO ASSEMBLED UPPER RECEIVER M489UPPER-13.7-556-B M489UPPER-13.7-556-B
SKU: 877473
Manufacturer part number: M489UPPER-13.7-556-B
Availability: Out of stock
Old price: $1,152.99
$909.34

The SOLGW M4-89 Upper Half comes with SOLGW’s Combat Barrel and M89 Rail, and is available in 12.5” and 13.7” 5.56, with A2, NOX or ASR muzzle devices. No BCG or C/H

*13.7” barrels come pinned and welded flash hiders for OAL of 16”*

Manufacturer Part Number: M489UPPER-13.7-556-B

Products specifications
CategoryParts
ManufacturerSons OF Liberty Gun Works
SubCategoryUppers
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