• Comes standard with a 1/8 twist, 18", Medium Profile 416SS barrel. Available with a number of other barrel options (See Below)
• Full Auto Carrier, High Pressure Tested and Magnetic Particle Inspected Bolt properly staked and lapped flat carrier key. Chrome lined Young National Match carriers available!
• Barrel chambered with matched bolt
• Standard with Troy Extreme 13" Rail. (
Mine utilies the 15" Troy tube!)
• Available in Rifle or Intermediate, or Mid gas lengths
• 11 degree target crown
• Low profile gas block
• A2 Flash Suppressor (
PWS FSC556 in my case)
• Polished M4 feed ramps
• Mil-Spec Forged 7075 T6 upper receiver with T-markings, forward assist, hinged dust cover, and M4 feed ramps.
1. These uppers feature my Limited Life Time Warranty.
2. High Pressure Testing followed by Magnetic Particle Inspection assures a rock solid bolt.
3. 223 Wylde chamber increases accuracy and works with 5.56 NATO or .223 SAMMI spec ammunition.
4. Every upper is built by one person from start to finish.
5. I guarantee that every SPR Upper will hold sub-MOA groups and prove that by sending you a picture of the test!
6. I custom fit the rail/upper, chamber/bolt, gas block/barrel, and comp/flash hider interfaces to insure a highly accurate build.
7. We align our barrel blanks to 2/10000 of an inch bore alignment before threading or chambering!
8. These are uppers are built for pushing the 5.56 to ranges unheard of before. I use the Gritters or Two Line method to chamber my SPR barrels. It adds UP MOA to the shot allowing you more elevation at distance.
Quality Assurance
Every single upper that Johnson Tactical produces is fully tested before delivery to the customer. We feel your paying for quality and our job is to insure that is what you are getting! We start by manually inspecting every part, then as the build progresses it’s fit with the other components. Some parts are hand fitted to ensure tighter tolerances. A good example of this is the gas block to barrel fit. This needs to be precise to eliminate gas leaks