Guarder Steel Handguard Cap for M4/AR-15 Carbine Used for Real Handguard - Airsoft Shop, Airsoft Guns, Sniper rifles, Airsoft pistols, parts and bbs by FireSupport
CMMG AR-15 M4 HANDGUARD CAP TRIANGLE - Brownells UK
CMMG AR-15 M4 HANDGUARD CAP - Brownells Benelux
7/8 inch Front M4 Hand Guard Mod Cap – Punishers Paintball
AR15 / M4 / M16 Round Hanguard End Cap - .625"
Handguard Cap Triangle - .750 AR15 - TNTE Sales Inc.
G&P Steel Handguard Cap for M4 / M16 series Airsoft AEG Rifle (Real Steel Type), Accessories & Parts, External Parts, M4 / M16 External Parts, M4/M16 Mock Gas Blocks and Tubes -
King Arms M4 Handguard Cap Airsoft Tiger111HK Area
How to Remove / Install a Hand Guard Cap - Windham Weaponry Online. AR-15 Manufacturer