The MGI Rate and Recoil Reducing Buffer for the AR-15 Carbine is designed to reduce a select-fire rifle's cyclic rate by over 300 rounds per minute for greater controllability when firing in the fully automatic mode. For the average shooter with a semi-auto only AR-15, it can also significantly reduce the firearm's felt recoil impulse. The MGI Buffer utilizes a mechanical system as opposed to a hydraulic one, and adjusts automatically to the individual firearm it is installed in. It does not require the use of weak springs or anything which can jeopardize reliability. The reduction in felt recoil increases accuracy potential and allows for quicker follow up shots if needed.