Sons Of Liberty Gun Works M4-89 9" 300BLK AR-15 Pistol

SKU: M4-89-300-PISTOL-9
MPN: M4-89-300-PISTOL-9
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Standard orders will ship out 1 business day if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

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Handguns are regulated by the ATF have restrictions and requirements:
 •Your Entire Order will ship only to a Federal Firearm License holder
•Carriers and shipping methods are limited
•A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarms.



Sons of Liberty Gun works is committed to making high-quality parts and firearms, and they stand by their products for a lifetime, which is why each of them comes with a lifetime warranty from manufacturing defects. This AR Pistol is an awesome way to get into the .300 Blackout platform with a firearm that’s meant to last you for a lifetime of hard use.

  • 9”  Barreled Upper Receiver 
  • 7075-T6 Upper
  • Combat Grade Barrel 
  • Threaded Barrel 
  • Included A2 Flash Hider
  • Lower includes Pistol Brace, Magpul Pistol Grip, and one Magazine

If you’re looking for an awesome .300 Blackout pistol build, this is one worth looking at. This has a high-quality receiver, including an ejection port cover, forward assist, and an integral Picatinny rail that extends the length of the handguard. The front sight block is low profile, meaning that this will be an optics-ready option. This is a complete package, that comes with everything but an optic and ammo.  With that in mind, this is an excellent pistol in .300 Blackout: all you need is an optic, and you’d be ready to go to the range or to defend yourself.
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Barrel Coating
Barrel Length9
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandSons of Liberty Gun Works
Caliber Gauge300 Blackout
Gas System LengthPistol
Gas System TypeDirect Impingement
Thread Pattern5/8 X 24
Twist Rate1:7

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