Sig Sauer AR-15 M400 Tread M-LOK Front Sight Rail

Make sure your sight has a steady and strong base with the Sig SauerA(R) Tread / AR-15 M-LOK Sight Rail. Durable and lightweight polymer construction ensures this sight rail can withstand serious use and abuse in virtually any environment and keeps your front sight secure and steady for your M400 Tread or AR-15 rifle. Compatible with M-LOK style interface and includes mounting hardware. Order today!