Bravo Company MK2 Mod 1 Buffer FeaturesLessens felt recoil, without compromising reliabilityProvides a more consistent carrier velocity, which can aid in accuracy, reliability over conventional carbine buffer systemIncreased internal counterweight travel reduces bolt bounceUses a M16A4 rifle spring with more spring coils than M4 carbine, increases consistency and widens operating envelopeInternal spring to reduce noise of counter weight shifting and ensure more consistent weight placementMade of 7075T6 aluminum, hard coat anodized for lasting endurance. Comprised of Mil-Spec components NOTE:MK2 MOD 1 buffer series is to ONLY be used on the AR15 receiver platform and it ONLY works in conjunction with the BCM MK2 Receiver Extension and the Mil-Spec Rifle M16 Action Spring.