Enhance the performance of your G&G ARP9 or ARP556 with the Inner Barrel Stabilizer (IBS)—an essential internal upgrade that delivers tighter groupings and increased accuracy. Designed to lock the inner barrel firmly in place at the hop-up and muzzle ends, this stabilizer prevents any unwanted movement that could throw off your shots. The IBS is a simple, drop-in solution that provides noticeable improvements with minimal cost and effort. Whether you're clearing corners in CQB or holding down a lane outdoors, this upgrade ensures your BBs fly straight and true.

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Features:

• Eliminates inner barrel wobble, ensuring a stable firing platform
• Improves BB trajectory, consistency, and grouping accuracy
• Quick and easy screw-on installation—no modification required
• Low-cost, high-impact upgrade for serious performance gains
• Specifically designed for the ARP9 and ARP556 platforms