Reviews & Ratings for Superlative Arms AR15 Bolt Carrier, Direct Impingement — 5 reviews — Page 1

I've been building and shooting ARs for 30 years. I can troubleshoot almost all issues and have the tools, gauges, and drawings to predict performance and make repairs. Sometimes a tolerance stack up can work to the builder's advantage but often it will ruin a build if too large.

The design and appearance of the carrier body is top notch. The only visual issue I had was the gas key staking. It was uneven and looked like it was done with a square punch. It left sharp burrs that were not impressive. The OACKS screws are wonderful but only a proper staking can utilize their innovation. Star deduction.

With this carrier I used a brand-new JP Enterprises bolt, cam pin, firing pin, and fp retainer. All critical dimensions were well within spec. After assembly, I checked headspace and headed to the range. Note: The feel of the new carrier in relation to the new gas ring was surprisingly course but not unusual being brand new.

Upon firing I immediately ran into issues. Short stroking and misfeeds. I then used a lighter buffer (A5H0) and it helped but only with full power M193 5.56 NATO. I swapped out the Sprinco green spring with a polished rifle spring (used) and now it locked back on low power .223 Wolf ammo. The gas port on this barrel can cycle everything so upon closer examination I found that the bolt tail bore was oversized and leaking way too much gas. The JP bolt tail measured exactly .250" and showed almost no wear associated with a good seal. All other dimensions were i...
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Switched out my bolt carrier with this superlative went too the range works perfect no problems and the price is right

If you need a carrier… buy this. Picked one up and matched it to a Cryptic bolt and it is running perfectly in a 350 legend upper. Had some questions and went to Superlative Arms directly and they were awesome to work with and extremely helpful. Finish and machining is flawless. Be aware, it may be a tight fit in your upper at first but that is totally normal. Run it heavily oiled for the first 100 rounds. The DLC coating is super easy to clean up. Just wipe and relube.