Solo 300 Complete Upper

Solo 300 Complete Upper

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The Solo 300 is something new in the AR-15 world; a manually operated, straight-pull bolt action upper that requires no buffer tube. The result is the lightest, most compact weapon possible on the AR-15 platform.

The Solo 300 is compatible with any standard AR-15 lower, with or without buffer tube. And because it's built on an actual AR-15 upper receiver, it's compatible with all your favorite accessories, including free-float handguards and magazines of all sizes.

Whether you configure it as an SBR, braced pistol, or a true handgun, the Solo 300 upper gives you the lightest, most compact 300 Blackout on the market.

  • 300 Blackout 
  • 19oz (Complete upper) 
  • 40-45oz Approx. total weight w/lower
  • 6" Barrel, 416 Stainless 
  • 5/8-24 threaded muzzle 
  • 1-5" Twist 
  • 5R Rifling 
  • Fluted stainless thread protector
  • Billet Aluminum Receiver 
  • No FA / No Brass deflector  
  • Compatible with buffer tubes, buffer hole plugs, and picatinny stock/brace adaptors (all available separately.)
  • Optional Black Cerakote on barrel & bolt handle (+$30)
  • Optional 5" Mlok handguard                                  (+$45)

Shipping and Handling

S&H to the United States is $14 via USPS