The Reptilia RECC-E Carbine Stock (brand part number 100141) is a glass-filled nylon polymer stock built after more than two years of development at the request of a military end user, designed to fit SR-15, M4, and AR-15-pattern rifles. It delivers a constant cheek weld regardless of length-of-pull setting, ambidextrous QD sling attachment points, and a rubber buttpad for a secure shoulder mount. The modular design accepts either a standard AR-15 carbine buffer system or an A5/SR25 carbine buffer system by swapping the receiver extension and forward portion of the stock, and the whole package weighs only 12.0 ounces including the proprietary carbine-length receiver extension. It’s a lightweight solution that scales from compact carbines to precision-oriented AR-pattern builds.

Key Specifications

• Built from glass-filled nylon polymer in a fixed carbine profile.
• Delivers a constant cheek weld regardless of stock position.
• Includes ambidextrous QD sling attachment points for either-side carry.
• Features a rubber buttpad for a secure, non-slip shoulder mount.
• Modular design accepts either a standard AR-15 or an A5/SR25 carbine buffer system.
• Weighs only 12.0 ounces, including the proprietary receiver extension.
• Compatible with SR-15, M4, and AR-15-pattern rifles.
• Built as a fixed, non-collapsible stock rather than an adjustable design.

Frequently Asked Questions

Does this stock fit AR-15, M4, and SR-15 rifles? Yes, it’s built to fit all three platforms directly.

Can this stock run on an A5/SR25 buffer system? Yes, its modular design allows the receiver extension and forward stock portion to be swapped for A5/SR25 carbine buffer compatibility.

How much does the stock weigh? Only 12.0 ounces including the proprietary carbine-length receiver extension.

Buy the Reptilia RECC-E Carbine Stock

Get a constant cheek weld and a lighter build with a stock developed for military end users. Order the RECC-E from our Reptilia lineup of AR braces and stocks for fast, reliable shipping from our Lubbock, Texas gun shop.