“I am a big fan of Aero Precision and used all their parts to assemble an AR including the upper and lower receivers, LPK, BCG, and receiver extension kit. Arm or Ally had all the parts I needed in stock at the best prices. They shipped quickly. I had a WOA Bartlein barrel, an SLR Rifleworks HG, and a stock. The parts went together perfectly. Absolutely no issues! Highly recommend Aero Precision and Arms or Ally!”
“Great lower, as close as you will come to getting a billet lower. Really like the threaded bolt latch release pin. Would recommend this lower over any comparable priced lower”
“Great product. Build construction and finish are great. The features of this M4E1 made it a breeze to assembly my first AR15. Will use it again for another build. Highly satisfied and would recommed to anyone to use.
John S.”
“I've put one together and have another waiting. The first went together quite nicely without any fuss. I like the bolt catch pin being threaded so I don't have to pound in a pin and risk scratching the finish. I also like the adjustment screw to take up the slack on the rear of the upper/lower makeup. The closed ear trigger guard is also a plus for me.”
