Sons Of Liberty Gun Works M48914.5 M4-89 5.56x45mm NATO 14.50 in Combat Grade Barrel, Black, M-Lok Handguard, P&W NOX9 Flash Hider, Mid-Length Gas System, Rifle

If youre looking for your next high-quality AR-15 rifle build, then a Sons of Liberty M4-89 barreled upper receiver is a great place to start. This receiver is manufactured with strict quality control, plus features an ejection port cover, forward assist, and an integral Picatinny rail that extends the length of the handguard. There is a combat grade barrel at the heart of the M4-89, which is magnetic particle inspected and high pressure tested. SOLGW includes their NOX Flash Hider which is pinned and ready to mount a Dead Air Sandman or Nomad suppressor. Bolt Carrier Group & Charging Handle NOT Included. Bolt Carrier Group & Charging Handle NOT Included.

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Barrel Material:	Chrome Moly Vanadium
Barrel Length Range:	14" to 14.99"
Handguard Finish:	Black Hard Coat Anodized
Barrel Finish:	Black Nitride
Muzzle:	NOX9 Flash Hider Pinned & Welded
Receiver Finish:	Black Hard Coat Anodized
Barrel Description:	Combat Grade
Handguards:	M-LOK
Twist:	1:7"
Gun Platform:	AR-Style
Type:	Semi-Complete
Firearm Fit:	AR-15
Firearm Type:	AR-Platform
Thread Pattern:	1/2"x28
Caliber:	5.56x45mm NATO
Receiver Material:	7075-T6 Aluminum
Barrel Length:	14.50"
Model:	M4-89
Sights:	None
Optic Ready: