sorry SOLD OUT, hope to have more in about 4 weeks. Releasing the bolt on a standard 10/22 is one of the most awkward motions on a firearm. For most its a two handed job. But this Auto Bolt Release for Ruger 10/22 enables the shooter to simply pull back the bolt slightly to the rear and the bolt automatically releases. These have a contoured edge for better grip. Stainless steel. This is a must have 10/22 upgrade. No gunsmithing required, easy to install. upgrade to Part # B-41 1) Black 2) Silver + order the 10/22 deluxe buffer with this and buffer is only $8. * video clip shows how quick and easy it is to install (mine is not this brand)