Luth-AR AR-15 A1 Teardrop Forward Assist Assembly w/ Spring and Roll Pin Black. Machined from MIL-SPEC materials this forward assist is fully compatible with standard forged receivers. The extended tear drop design provides plenty of surface area when utilizing the forward assist without a lip or rim that can catch knuckles when using ambidextrous charging handles. Specifications for Luth-AR AR-15 A1 Teardrop Forward Assist Assembly w/ Spring and Roll Pin: Manufacturer: Luth-AR Color: Black Gun Model: AR-15 Gun Make: AR Platform Package Contents: Luth-AR AR-15 A1 Teardrop Forward Assist Assembly w/ Spring and Roll Pin Forward assist Forward assist spring Forward assist pin What firearm models does the manufacturer say Luth-AR AR-15 A1 Teardrop Forward Assist Assembly w/ Spring and Roll Pin is compatible with? The manufacturer suggests that Luth-AR AR-15 A1 Teardrop Forward Assist Assembly w/ Spring and Roll Pin is compatible with AR-15Luth-AR UR-08-T: AR-15 A1 Teardrop Forward Assist Assembly w/ Spring and Roll Pin Black