The TSK L.O.P. (Length of Pull) Cups with Helicoil are a critical structural upgrade, or an essential replacement part, for your TSK Fully Adjustable Stock. These precision-machined cylindrical cups are positioned at the very rear of the TSK pipe architecture, serving as the primary mounting points that connect the buttplate and recoil pad assembly to the rest of the shotgun. They are designed to enhance the durability and reliability of your TSK shotgun stock system, particularly for competitive shooting.

What distinguishes this specific set is the factory-installed Helicoil inserts. TSK stocks are engineered for infinite adjustability, meaning competitive shooters frequently loosen and tighten the L.O.P. locking screws to fine-tune their fit. Directly threading steel bolts into standard aluminium cups can eventually lead to stripped threads, causing the buttplate to become wobbly or completely unsecured. The stainless steel Helicoil inserts completely resolve this issue by providing a hardened, steel-on-steel threaded connection, offering superior pull-out strength compared to standard aluminium threads.

This heavy-duty reinforcement allows you to apply the correct torque to your locking screws with absolute confidence, ensuring your recoil pad remains rock-solid under heavy 12-gauge recoil without the concern of damaging the internal threads of your Italian stock system. This upgrade is vital for maintaining precise and stable adjustments, crucial for consistent performance in sporting and hunting scenarios.

• Helicoil Reinforcement: Stainless steel thread inserts offer exceptional pull-out strength and completely prevent the internal aluminium threads from stripping over time, ensuring a long-lasting connection.

• Rock-Solid L.O.P. Lockup: Ensures your Length of Pull setting remains completely rigid, preventing the buttplate from twisting or sliding during crucial competition stages or during active hunting.

• Genuine TSK Upgrade: Authentic Italian-made components engineered to exact factory tolerances for a flawless fit on your existing TSK pipe system, guaranteeing quality and performance.

• Lightweight Aluminium Body: The main body of the cup is machined from aerospace-grade aluminium to keep the overall weight down and maintain the perfect balance of your shotgun, aiding in comfortable handling.

• Universal Compatibility: Designed to fit the standard rear architecture of all TSK and "Beretta by TSK" adjustable stock configurations, offering broad applicability.