Guntec USA AR9 Complete Nitride Bolt Carrier Group
Original price was: $119.95.$99.99Current price is: $99.99.
Upgrade your 9mm AR-style pistol or carbine with the Guntec USA AR9 Complete Nitride BCG. Crafted from high-quality 8620 and 9310 steel, this BCG boasts a durable nitride finish for enhanced reliability. Featuring a full auto M-16 design, magnetic particle inspection, and properly staked gas key, it ensures optimal performance and compatibility. Made in the USA, this lightweight BCG weighs just 11.6oz, reducing felt recoil without compromising durability.
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The Guntec USA AR9 Complete Nitride Bolt Carrier Group is available at Daytona Tactical. In stock and ready to ship with fast delivery.
Guntec USA AR 9 Bolt Carrier Group Nitride Coated
Introducing the Guntec USA AR9 Complete Nitride BCG! This top-of-the-line BCG is perfect for those looking to build or upgrade their 9mm AR-style pistol or carbine. Made from high quality 8620 steel, the carrier is coated with a durable nitride finish. Also, the bolt is made from 9310 steel and features a magnetic particle inspection (MPI) for increased strength and reliability. The extractor is also made from 8620 tool steel and features a nitride finish for durability.
Also, the gas key is made from 8620 tool steel and grade 8 hardware and is properly staked for secure installation. This BCG also features a full auto M-16 design for increased compatibility with various parts and accessories. Also, weighing in at just 11.6 ounces, this BCG is light enough to reduce felt recoil while still providing plenty of heft and durability. Get your hands on the Guntec USA AR9 Complete Nitride Bolt Carrier Group today!
Guntec AR9 Complete BCG Features:
- Mil Spec Carrier
- 8620 Tool Steel
- Full Auto M-16
- Mil Spec Bolt
- 9310 Steel
- Also, Magnetic Particle Inspected (MPI)
- Mil Spec Extractor
- 8620 Tool Steel
- Also, Nitride Finish
- Extractor Spring
- Mil Spec Gas Key
- 8620 Tool Steel
- Grade 8 Hardware
- Properly Staked
- Weight: 11.6oz
- Made in the USA
- SKU: GT-BCG-9
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov
The AR-9 bolt carrier group uses a blowback operating system specific to 9mm AR-15 platform rifles and pistols, where the rearward pressure of the fired cartridge case drives the carrier rearward to cycle the action. Unlike a gas-operated AR-15 BCG, the blowback 9mm carrier is heavier to slow the cycling speed and control extraction timing — the extra mass is necessary for reliable function with standard 9mm Luger ammunition. The nitride finish on the Guntec AR-9 BCG provides a hard, corrosion-resistant surface that sheds carbon fouling more readily than standard phosphate — a meaningful benefit since blowback 9mm ARs tend to generate significant carbon deposits on the carrier during normal use. This BCG is compatible with Colt-pattern 9mm AR lower receivers and dedicated 9mm upper receivers — confirm magazine compatibility with your specific lower before ordering.
Shop the Guntec USA AR9 Complete Nitride Bolt Carrier Group
Daytona Tactical carries a full selection of firearms accessories, including the Guntec USA AR9 Complete Nitride Bolt Carrier Group. Whether you’re building, upgrading, or replacing a worn part, we stock quality components from trusted brands with fast shipping across the USA.
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1 review for Guntec USA AR9 Complete Nitride Bolt Carrier Group
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Frequently Asked Questions
What makes the AR-9 BCG different from a standard AR-15 BCG?
The AR-9 BCG uses a blowback operating system specific to 9mm — there is no gas key, as the action cycles from the rearward pressure of the fired case rather than a gas piston system. The carrier is heavier than a standard 5.56 carrier to control the cycling rate with standard 9mm Luger ammunition.
What is the advantage of nitride over phosphate on a 9mm BCG?
Blowback 9mm ARs produce more carbon fouling on the carrier than gas-operated 5.56 rifles. A nitrided surface is harder and more corrosion-resistant than phosphate and sheds carbon fouling more readily, reducing cleaning time and extending the service life of the carrier body compared to a standard phosphate finish.
What lower receivers is this BCG compatible with?
This BCG is designed for Colt-pattern 9mm AR lower receivers. Verify your lower receiver’s magazine pattern compatibility before ordering, as AR-9 lowers differ between Colt-pattern and Glock-pattern magazine wells and not all 9mm BCGs are cross-compatible.
Darin Kleen –
Just finished 2nd of two upper builds . Running same BCG from Guntec. 8″ & 16″ length Brls. Approx. 500 rds later, Guntec’s BCG runs flawlessly!!! Now I need .45 cal. BCG Guntec and Daytona Tac. hint hint!!! Dznuts, in Nevada