Description
The Magpul MOE SL-S (Slim Line – Storage) is a Mil-Spec AR15/M4 carbine stock that adds storage to the slim SL profile. Two O-ring sealed compartments, rated by Magpul to 10 m depth, each hold up to two CR123A or AA batteries. Release levers on both sides make length adjustment ambidextrous, an internal anti-rattle feature keeps it quiet on the tube, and the enhanced cheek weld stays narrow for a fast mount. An integral ambidextrous QD sling socket and two footman’s loops cover sling options, and the anti-slip rubber butt-pad has a rollover toe for smooth shouldering. Specifications from Magpul: 13.3 oz stock only (about 17.1 oz with receiver extension), 7.4 in long, 5.3 in high, 2.4 in wide, length of pull about 11.0 in collapsed to 14.3 in extended (3.3 in range).
Key features
- Two waterproof O-ring sealed storage compartments (sealed to 10 m), each holding two CR123A or AA batteries
- Slim SL profile with enhanced cheek weld
- Dual-side release levers for ambidextrous adjustment; internal anti-rattle feature
- Integral ambidextrous QD sling mount plus two footman’s loops
- Anti-slip rubber butt-pad with rollover toe
- Weight 13.3 oz stock only (~17.1 oz with receiver extension); length 7.4 in, height 5.3 in, width 2.4 in, butt 1.6 in
- Length of pull ~11.0 in collapsed / ~14.3 in extended (3.3 in range); fits Mil-Spec carbine receiver extensions; Magpul code MAG653; made in the USA
Frequently asked questions
What is the difference between the MOE SL and the MOE SL-S?
The SL-S adds two sealed battery-storage compartments and an integral QD sling socket to the slim SL stock profile.
Does the MOE SL-S fit a Mil-Spec buffer tube?
Yes — MAG653 is the Mil-Spec version and is sized for Mil-Spec carbine receiver extensions.
How much does the MOE SL-S weigh?
Magpul lists 13.3 oz for the stock alone, about 17.1 oz with the receiver extension.
Specifications from Magpul (magpul.com).
Firearm parts and accessories are supplied by 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD. Check your state’s firearm-parts and magazine rules before ordering.





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