Reptilia 100141: Introducing the RECCE SR-15/M4/AR-15 Carbine Stock by Reptilia. After more than two years of development and testing, Reptilia is proud to announce the RECCE Stock for AR15/M4. Designed at the request of a military end user, the RECCE Stock features a constant cheek weld, ambidextrous QD sling attachment points, rubber buttpad, and a modular design that allows usage of a standard AR15 carbine buffer system, or A5/SR25 carbine buffer system by replacing the receiver extension (buffer tube) and forward portion of the stock. Weighing only 12.0 ounces including the proprietary AR15 carbine-length receiver extension, the RECCE stock is the ideal lightweight solution for the entire spectrum of AR-pattern guns from compact to precision.