Shooters with longer arms or those running magnified optics often find factory fixed stocks coming up short on Length of Pull (LOP). A short LOP forces you to hunch over the receiver, crowding your optic, ruining proper eye relief, and creating unnecessary neck strain during long sessions behind the rifle.

The Magpul® PRS® Extended Rubber Butt-Pad 0.80" (MAG350) provides a clean, direct solution to customize your stock ergonomics. Designed as a direct swap for the factory pad, this 0.80" thick profile adds approximately 0.5" to your total Length of Pull. The resilient rubber matrix dampens shoulder impact while providing a positive, non-slip interface against tactical gear—ensuring consistent, repeatable eye placement behind your glass shot after shot.

Key Features & Technical Highlights

• +0.5" Length of Pull Extension: Replaces the thin factory pad to increase LOP by roughly half an inch, allowing taller marksmen and long-armed shooters to achieve a relaxed, natural cheek weld.
• Optimised Eye Relief Alignment: Prevents optic crowding on precision setups, helping you hit the eyebox of high-magnification scopes quickly from prone or bench positions.
• Tough High-Traction Rubber: Molded from chemical-resistant synthetic rubber with structured surface grip to prevent stock rotation against plate carriers, jacket material, or wet rain gear.
• Official NSN Designation: Awarded NSN 1005-01-591-5976, verifying compliance with stringent military supply standards for durability and environmental resistance.
• Direct Hardware Fitment: Installs in minutes using the existing screws from your original stock assembly.

Technical Specifications & Fitment

• Brand: Magpul® (USA)
• Product Name: PRS® Extended Rubber Butt-Pad, 0.80"
• Pad Thickness: 0.80 in (2.03 cm)
• LOP Added: Approx. +0.5 in (+1.27 cm)
• Material: High-Density Synthetic Rubber
• Country of Origin: USA
• Compatibility Breakdown:
  • Legacy PRS Models: Fits legacy PRS® AR15/M16 (MAG307) and PRS® AR10/SR25.
  • MOE Fixed Stocks: Fits MOE® Rifle Stock and MOE® Fixed Carbine Stock.
  • Note: Does NOT fit PRS® Gen3 or non-specified collapsible stocks.

Applications

• Precision Rifle & DMR Builds: Fine-tunes stock geometry on long-range platforms to maximize eye relief consistency under match conditions.
• Customising MOE Fixed Carbine Rigs: Easily extends the LOP on lightweight fixed-carbine platforms without changing out the receiver extension.