AR-9 9mm BCG + 1/2x28 Barrel + Magwell Adapter - Choose Size
This 9mm Straight Profile Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish.
This barrel is a fully machined barrel precision-crafted from 4150 Chrome Moly Vanadium, rifled with a 1:10 twist and QPQ coated inside and out. The result is an accurate barrel that stays that way without chipping or peeling coatings and little risk of damage from corrosion, regardless of your operating environment.
**These barrels do not have index pins**
- Material - 4150 Chrome Moly Vanadium
- Profile - Straight
- Finish - QPQ Corrosion Resistant
- Gas System Length - None
- Gas Block Journal - N/A
- Twist Rate - 1:10 inches
- Muzzle - 1/2x28 Threaded
9mm Magwell Adapter:
****Take care not to strip the set screws when locking the adapter into place. COLT STYLE MAGAZINES ONLY****
9mm AR-15 Magwell Adapter for Colt style magazines. This USA Made adapter allows for easy conversion from any standard .223/5.56 lower receiver to 9mm. The easy drop in design installs in minutes, with no gunsmithing or permanent modifications needed to the lower receiver.
- Last round bolt hold open
- Steel feed ramps
- Installs from the bottom of the magwell with top and bottom locking Screws
- No dissassembly of the bolt catch required
- Fits Colt SMG and Uzi Style Mags
- T-6061 black anodized aluminum body
- Steel feed ramp and ejector
- Net weight: 4.3 oz
This 9mm BCG is perfect for your 9mm Pistol Caliber AR-15 Build. Due to the increased rearward velocity, blowback AR systems require a heavier carrier. This AR9 Colt pattern bolt comes in at 14.8 ounces, providing the correct weight needed to tame your blow back system.
Compatible with both Colt and Glock pattern builds.
This BCG works great with any Colt style 9mm rifle and Colt pattern magazines.
- Colt & Glock Compatible
- USA made 8620 Steel Carrier Construction
- Phosphated or Nitrided Finish
- Heavy Firing Pin Retaining Spring
- 14.8 oz.