The G&P Adjustable Stock for PolarStar R3 13ci HPA Tank Systems is a smart, ergonomic upgrade designed for players running compact 13ci HPA tank setups who want improved comfort, adjustability, and a clean, integrated profile. Built specifically to accommodate 2-inch diameter 13ci HPA tanks, this stock delivers a streamlined solution that balances performance, durability, and user comfort—ideal for CQB-focused builds and lightweight HPA platforms.

Constructed from high-quality injection molded polymer, the G&P Adjustable Stock offers excellent durability while keeping overall weight to a minimum. Polymer construction makes it resistant to impacts, weather exposure, and general field wear, ensuring reliable performance across long game days and demanding environments. The reinforced design maintains rigidity around the tank housing while still providing enough flexibility to absorb minor impacts during aggressive movement or rapid transitions.

One of the standout features of this stock is its adjustable length of pull. This allows players to fine-tune the stock position to match their body size, shooting stance, and gear setup. Whether you prefer a compact, collapsed configuration for tight indoor spaces or a slightly extended position for better shoulder support and stability, the adjustable design ensures a comfortable and repeatable shooting position. This level of customization is especially valuable for HPA users, where balance and ergonomics play a major role in performance.

Designed specifically for PolarStar R3-style 13ci HPA tank systems, this stock allows the air tank to function as both the air source and the stock itself. By integrating the tank directly into the stock, players can eliminate remote air lines, resulting in a cleaner, snag-free setup. This not only improves mobility but also reduces the risk of line interference during fast-paced gameplay. The result is a compact, efficient HPA configuration that feels more like a traditional rifle stock while retaining all the advantages of HPA power.

Comfort is further enhanced by the rubberized butt pad, which provides a secure, non-slip contact point against the shoulder. The rubber pad helps absorb minor recoil impulse and vibration, improving stability during rapid follow-up shots. It also prevents the stock from slipping on plate carriers, chest rigs, or outer garments, ensuring consistent shoulder placement even during intense movement.

The G&P Adjustable Stock is an excellent choice for players building CQB rifles, SMGs, or compact M4 platforms where maneuverability and weight savings are critical. When paired with a 13ci tank, the overall setup remains lightweight and well-balanced, reducing fatigue during extended play sessions. This makes it particularly appealing for speedsoft players, indoor field use, and scenarios where quick handling is essential.

Installation is straightforward for users already running compatible PolarStar R3-style tank systems. The stock is engineered to provide a secure fit around the 13ci tank while maintaining proper alignment and comfort. Once installed, it offers a solid, wobble-free platform that feels natural and stable during use.

Manufactured by G&P, a respected name in the airsoft industry known for quality externals and upgrade components, this adjustable stock reflects the brand’s commitment to functional design and reliable performance. G&P products are widely trusted by builders and experienced players for their fit, finish, and durability.

In summary, the G&P Adjustable Stock for PolarStar R3 13ci HPA Tank Systems is a practical and well-designed solution for players looking to optimize their HPA setup. With durable polymer construction, adjustable length of pull, integrated compatibility for 13ci tanks, and a comfortable rubber butt pad, this stock enhances both performance and comfort. Whether you’re refining a competitive CQB build or upgrading your existing HPA rifle, this stock delivers a clean, efficient, and player-focused solution.