350 Legend Complete Upper, 10"
350 Legend Complete Upper, 10"

350 Legend Complete Upper, 10"

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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 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 350 Legend on the market.

  • 350 Legend 
  • 29oz (Complete upper) 
  • 10" Barrel, 416 Stainless 
  • 5/8-24 threaded muzzle 
  • 1 in 10" Twist 
  • 5R Rifling 
  • Fluted stainless thread protector
  • Forged Aluminum Receiver 
  • Compatible with buffer tubes, buffer hole plugs, and picatinny stock/brace adaptors (all available separately.)
  • Optional black Cerakote finish on stainless barrel and bolt handle (+$40)
  • Optional 7" Mlok handguard                                  (+$65)

Shipping and Handling

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