I bought Phase5 V3 for three of my Bravo Company Manufacturing (BCM)weapon system. It replaced one of my Troy Industries Extended Bolt Release (EBR). Phase 5 is one solid piece and far less wiggle room. Although, it replaced my Troy EBR, Troy industries appear a bit more streamlined than Magpul EBRs. I ended up reusing my Troy EBR on a Palmetto State Armory (PSA) AR pistol build. Important Note: I did found a way to decrease the wiggle of the Troy by wrapping the bolt release paddle with black electrical tape and then trimming off the edges. I also placed electical tape to fill the space on both sides of the paddle. By wrapping it makes a gusset type seal that tightens and fills in the lose space inside the Troy EBR. Be advised its gonna be a little hard to put the screws in after doing this, because of less dead space i side. Be sure to tightened down both screws w/ blue locktight. After some meticulous taping and trimming work, now the Troy EBR is just a solid (97% less wiggle) similar to the Phase 5 EBR. The price comparison for both is approximately $20 more for the Phase 5 V3. I do recommend both product options because it does make rapid reloading drills several seconds faster than without an EBR. Well worth the investment.