Tacfire PK556-LPK-10 pistol kit. Everything you need to build out your 5.56 pistol just add a lower receiver.

Includes:

• 10.5" Barrel
• Low profile gas block
• Pistol length gas tube
• A2 flash hider
• Bolt carrier group
• M-Lok hand guard
• Lower parts kit
• Upper parts kit
• Pistol buffer tube
• Buffer and spring
• Black Anodized
• DOES NOT INCLUDE A LOWER RECEIVER