Utg Pro Model4 S1 Stk Ml-Spc Blk

The Leapers UTG Pro Model4 S1 is a mil-spec AR-15 and M4 collapsible stock built for shooters who need durability without compromise. Constructed from high-impact polymer, this six-position adjustable stock handles hard use—whether you're running drills at the range, hunting from a vehicle, or building a reliable fighting rifle. The tight tolerances keep everything locked down securely, and the design prioritizes silent performance when you need it.

What sets this stock apart is the attention to shooter comfort. The rubberized recoil pad soaks up felt recoil, while chamfered edges and a slanted cheek rest make extended shooting sessions less of a grind. The reversible QD sling swivel housing and ambidextrous sling loop attachment give you mounting options whether you run left or right handed, and the dual storage compartments let you stash small essentials—spare ammo, cleaning patches, batteries—right on the stock itself.

Built to mil-spec standards, the Model4 S1 is the kind of no-frills upgrade that serious AR owners choose because it simply works. The black finish resists weather, and the polymer construction won't rust or corrode in field conditions. If you're tired of wobbly stocks or cheap recoil pads, this is a straightforward step up.

Key Features

• Six-position adjustable/collapsible design for length-of-pull customization
• Mil-spec compatibility with AR-15 and M4 platform rifles
• Rugged high-impact polymer construction with weather-resistant black finish
• Thick rubberized recoil pad for reduced felt recoil
• Tight tolerances for secure, rattle-free fit and silent operation
• Reversible QD sling swivel housing for flexible attachment options
• Ambidextrous sling loop attachment for left or right-hand use
• Chamfered edges and slanted cheek rest for ergonomic comfort
• Dual storage compartments built into the stock body

Specifications

Frequently Asked Questions

Will this stock fit my AR-15 or M4?

Yes. The UTG Pro Model4 S1 is built to mil-spec standards and is compatible with any AR-15 or M4 style receiver extension (buffer tube).

What does the 6-position adjustable design do for me?

The six positions let you dial in your length of pull—the distance from trigger to cheek or shoulder—for a more comfortable, consistent shooting position. Shorter positions work for shooting in a vehicle or from barricades; longer positions suit standard benching or hunting offhand.

Can I attach a sling to this stock?

Yes. The stock includes a reversible QD (quick-detach) sling swivel housing and an ambidextrous sling loop attachment, so you can mount a sling on either side regardless of your shooting hand.

What are the storage compartments for?

The dual storage compartments built into the stock body let you store small items like spare ammunition, cleaning supplies, batteries, or field gear—keeping essentials accessible and organized right on your rifle.