Pachmayr’s new AR15 Slip-On Pad is the answer for those looking for an easy-to-install, non-slip pad for their M4 stocks. The pad simply slips over the edges of the M4 buttstock to secure it in place. The non-slip texture keeps the rifle firmly against your shoulder, yet looks good and makes the pad appear to be part of the rifle. The pad also features an internal cushioning section to reduce recoil. Fits most M4 style stocks with butts approximately 5 ¼” long and 1 9/16” wide.