Raider M-LOK 10.5 5.56mm Pistol Upper

KG Mayhem 9mm 8.5" Pistol Upper

Raider M-LOK 9mm 10.5" Pistol Upper Flash Hider

KG Stinger M-Lok 300AAC 7.5" Pistol Upper Bundle Stainless Steel

 Stinger M-LOK 300AAC Blackout 7.5" Pistol Upper Stainless Steel

 Stinger M-LOK 300AAC Blackout 7.5" Pistol Upper 

Overwatch 18" 6.5 Grendel Upper W 15" Handguard and BCG