RA is currently offering 3 distinct uppers, our M16 Trad-Family, Light Support Weapon Family, 9mm Rifle Kits-Coming August 2024

M16A4

  • The M16A4 includedes a HBAR barrel, flat top upper and OEM equipement, all all other equipement on this upper is OEM standard

  • Classic A4 upper cut to 16.5'', with Hbar barrel cut this is a custom option

603 H

  • Retro Arms has a limited supply of 603/SP1 clones they include our HBAR barrel,with al lthe correct fixings including A1 sights and a tear drop forward assist, all other parts are considered OEM or standard

MARS (Mini Assault Rifle System)

  • Retro Arms has a limited supply of MK18 MOD 0 - NATO 5.56mm uppers, they are fully custom. Cut down, over sized gas port hole, OEM low dome hand guard and OEM parts

A2 LSW

  • The A2 Light Support Weapon includes an HBar Barrel, OEM handguard, OEM parts, Yoke Rail for bottom point attachment and Tr-iad rail system. The A2 LSW are considered limited runs, but can be order with a lead time

LSW Flat top

  • The A4 Light Support Weapon includes an HBar Barrel, OEM handguard, OEM parts, Yoke Rail for bottom point attachment and Tr-iad rail system. The A4 LSW are considered common parts and are usually in stock

  • The A4 Light Support Weapon includes an HBar Barrel, OEM handguard, OEM parts, Yoke Rail for bottom point attachment and Tr-iad rail system. The A4 LSW are considered not common and can be ordered with a lead time

9mm 16’’ upper w/9mm Block

10.5’’ A1 upper

10.5’’ A1 upper