Minimalist stock designs look sharp and run light, but they quickly run into problems when paired with modern airsoft setups. If your rifle's buffer tube houses an inline MOSFET, micro-fuse, or a recoil mechanical unit, standard slim stock pads leave zero room to drop in an 11.1V stick battery.

Engineered as a direct solution, the PTS® Extended Battery Storage Butt Pad for EPS-C expands the battery envelope without ruining the slim ergonomics of your rifle. By extending the internal cavity, this pad unlocks a 105 x 20 x 15mm storage compartment within the butt plate itself—offering ample housing for buffer-tube style LiPo batteries while maintaining a streamlined rear profile.

Key Features & Technical Highlights

• Integrated Battery Expansion Cavity: Creates an internal battery storage space measuring approximately 105 x 20 x 15mm, tailored to fit standard 11.1V buffer tube LiPo stick batteries.
• Solves Recoil & MOSFET Space Constraints: Purpose-built for platform configurations with occupied buffer tubes, including Tokyo Marui Next Gen Recoil Systems (NGRS) and KWA ERG / AEG 3.0/3.0+ builds.
• DuPont™ Zytel® Reinforced Polymer Construction: Crafted from ultra-durable DuPont™ Zytel® polymer fused with a high-friction rubber traction plate to absorb impacts and harsh field use.
• Angled Anti-Slip Rubber Face: Designed with a sloped profile and textured tread for smooth shoulder mounting off plate carriers without snagging on tactical nylon.
• Drop-In EPS-C Compatibility: Snaps onto the PTS® EPS-C (Enhanced Polymer Stock - Compact) housing in seconds with no permanent modification required.

Technical Specifications

• Brand: PTS EP Series®
• Product Name: PTS EP Series - Extended Battery Storage Butt Pad for EPS-C
• Colour: Black
• Materials: DuPont™ Zytel® High-Performance Reinforced Polymer & Rubber
• Internal Battery Bay: Approx. 105 x 20 x 15 mm
• External Dimensions: Approx. 130 x 42 x 30 mm
• Weight: Approx. 50g
• Fitment: PTS® EPS-C Stock Only

Applications

• Tokyo Marui NGRS & KWA ERG Builds: Provides the exact clearance needed when kinetic recoil engines occupy the primary buffer tube lumen.
• Custom MOSFET & Rear-Wired AEGs: Prevents wire pinching and battery crush on tight rear-wired electric airsoft rifles.