Battle Arms Development, H3 Buffer, Mil-Spec, 5.4oz, Silver, Fits AR-15 WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Mil-Spec Buffer for use in AR15/M16 carbines with a collapsible stock Perfect for your build or direct replacement for worn out parts H3 weight, 5.4oz Product Description The Battle Arms Development Mil-spec buffers is your top choice for your next build. Featuring the ability to drop into any collapsible AR15/M16 buffer tube, their buffers are built to last.