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300 Blackout Pistol Kit

300 Blackout Pistol Kit


Building your own 300 Blackout Pistol or SBR requires some serious engineering, precision manufacturing, and the right combination of features to reliably cycle both suppressed and unsuppressed loads – just as the whisper round was intended to do. Getting all of these requirements in a compact, aesthetic and functional AR platform is no easy feat. Let us take out all that guesswork and save you some time, sweat, blood, tears, and money in the process.

Enter our industry-leading, pre-built and easy-to-assembly 300 Blackout Pistol Kits. Every kit features mil-spec steel and alloys, and the highest quality production standards on the market today. What’s more, every 300 Blackout Pistol Kit we sell is carefully designed to provide accuracy, reliability, and the ability to handle both super and subsonic 300 Blackout loads with ease. That’s a tall order, but we offer it all at a great price.

Every kit features a mil-spec, 4150 Chromoly or 416R Stainless barrel that’s heat-treated for superior accuracy and barrel life. Every barrel uses a pistol or carbine gas system with a 1:7 or 1:8 twist rate to handle any 300 Blackout load, light or heavy. Every upper receiver is built using mil-spec 7075 T6 aluminum, and it all comes with a mil-spec charging handle and bolt carrier group. Down below, you’ll find a quality lower parts kit and buffer assembly that makes final assembly a breeze without guesswork. We bring all this to you with the convenience of shipping it straight to your door, too! There’s no need for any FFL paperwork or transfer stuff. Just order, wait for the box, and slap it to any standard AR lower.

Buyer's Guides for Additional Product Information:

Read: What is a 300 Blackout Upper

Read: 300 Blackout Upper Buyer's Guide

Read: 300 Blackout Barrels Buyer's Guide

Read: 300 Blackout Barrel Steel Analysis

Benefits of Our 300 Blackout Rifle Kits

  • Ships straight to your door, no FFL required!
  • The most accurate Pistol Uppers on the market
  • Includes every part to build a 300 Blackout Pistol
  • 4150 Chromoly and 416R SS barrels for accuracy
  • Features mil-spec, pre-built 7075 T6 upper
  • Features mil-spec BCG and charging handle
  • Includes Picatinny, M-Lok, or Keymod handguard
  • Can be mated with any standard AR lower
  • Made & constructed in the USA