Compatible with M-LOK style rail systems, the Sig Sauer® Tread / AR-15 M-LOK Handstop Kit features lightweight polymer construction for superior strength and improves your rifle’s ergonomics for positive handling and quicker follow-up shots. This kit comes with a short and long handstop so you can customize your forward grip to your ideal setup. What’s more, mounting hardware is included so you can mount your new grip right out of the box. Compatible with M-LOK style rail systems. Order today!