Daniel Defense DD4 MK18RIII 5.56mm 10.3" Bbl Pistol WEBGB-MK18-P
All Daniel Defense barrels
Daniel Defense
Overview
The Daniel Defense DD4 MK18RIII 5.56mm 10.3" Bbl Pistol WEBGB-MK18-P is a barrel. Compare prices from multiple merchants and find the best deal.
Specifications
Daniel Defense DD4 MK18RIII 5.56mm 10.3" Bbl Pistol WEBGB-MK18-P
Price and stock
The Daniel Defense DD4 MK18RIII 5.56mm 10.3" Bbl Pistol WEBGB-MK18-P was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $2,143.99 at Guns.com for when it comes back.
Prices checked · refreshed daily across 37 retailers
Not sure which barrel to pick?
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
Frequently Built With
Popular alongside barrels on GunPartPicker
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Bravo Company M16 Bolt Carrier Group Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
No reviews yet. Be the first to review this product!