Brass Slug Dummy Battery Weight Insert – Tungsten Alternative for Recoil Control Heavy Solid Brass plug weight engineered to fit the battery compartments of CR123A powered weapon lights. Unlike a standard battery, this insert contains no power, lithium, or chemicals—only dense brass designed to add forward weight at the muzzle. USPSA and IDPA insider trick to reduce recoil in competition. By replacing a live CR123A with this plug, shooters add 2–4 ounces of precision-balanced mass at the front of the pistol. The result is reduced muzzle rise, improved dot stability, and faster follow-up shots, especially in competitive shooting environments. This tungsten-alternative upgrade provides similar recoil-control benefits at a more accessible cost, while maintaining better overall weight balance. It also pairs seamlessly with tungsten or steel guide rods, LOK brass grips, or brass backstraps for a fully stabilized pistol platform. Compatible with leading lights including SureFire X300/X400, Streamlight TLR-1/TLR-7, and Inforce WML, this insert installs in seconds with no tools or permanent modifications required. Includes one CR123A-size brass insert (dual-cell lights such as X300 or TLR-1 require two). Proudly made in the USA.