VictorSix, there is no real need, the AR works and functions fine without this little device... Now, to speed reloads up and slam the bolt faster than original, this device rocks.. also if you have a jam, bad feed, failure to feed, or eject.. you can left hand slam back the charging handle, lock the bolt back with your TRIGGER finger... drop mag, rack the bolt, lock back with your TRIGGER finger, slam in a new mag, drop the bolt with YOUR TRIGGER finger faster than the stock method all with you trigger finger never leaving the trigger area.. can you say FAST..
Now this means nothing on a range shooting paper zombies... BUT in the field under real time fire, can mean life... Now, this unit doesn't improve your weapon by just installing it. You have to train with how to use it and use it well for it to benefit your ability to stop the threat.. I hope that helps with the reason...
