Geissele

Geissele Automatics builds premium AR-15 parts: SSA and SSA-E two-stage triggers, Super Modular Rail (SMR) handguards, Airborne charging handles, Super 42 buffer springs and weights, and precision scope mounts. Every item we sell is new in the manufacturer's packaging with full factory warranty, and we ship to California and nationwide. Shop Geissele by product Super Modular Rail – SMR handguards in MK4, MK14 and MK16 configurations and multiple lengths SSA / SSA-E triggers – two-stage AR-15 triggers Airborne charging handles – ambidextrous charging handles Super 42 – buffer springs and weights for smoother cycling Scope mounts – precision scope mounts Armorer tools – reaction rods and blocks FAQ Which Geissele handguard fits my rifle? Each SMR lists its model (MK4, MK14 or MK16), length and platform in the title. Match the length to your barrel and gas system and check whether it uses its own barrel nut.