“Very pleased with the quality workmanship and appearance of the 6.5 Grendel BCG. Operates very smoothly in my aero precision upper. Will definitely consider Toolcraft for my next build.”
“I had nickel boron Fail Zero BCG and I had issues with the gas key not seated properly on the carrier so I purchased another BCG from Arm or Ally and this one works with no issues.”
“Always use Toolcraft BCG’ s and have never had an issue! This Grendal/ Arc BCG would chamber A round! After examination I found extractor would not pivot to allow bolt to fully go into battery , spring was way to stiff! Replaced extractor and spring with a modified set! Now work as it should!”
