AR-15 KEYMOD FREE FLOAT RAIL SYSTEM XTS-KM by Xtreme Tactical Sports $39.95 9 inch - $39.95 12 inch - $49.95 15 inch - $54.95 9 inch 12 inch 15 inch Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart AR-15 Keymod Free Float Rail System Available in 9", 12" and 15" Aircraft Grade 6061-T6 Aluminum Bead Blast with Type II Anodizing 1 Top Picatinny Rail 3 Keymod Rails Custom Installation required