Phase 5 Weapon Systems M16 Cut Bolt Carrier Group for AR-15 - .223/5.56 NATO
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- 90-day no-hassle returns policy
- Backed by the Phase 5 Warranty! what it covers
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Upgrade Your AR15 with the Best Black Phosphate BCG from Phase 5 Tactical
The Phase 5 Weapon Systems M16 Cut Bolt Carrier Group is a high-quality upgrade designed for M16/M4/AR-15 platforms running the .223/5.56 caliber. It is an ideal option for finishing up that project upper or as a replacement for an old worn-out carrier for easy installation and improved reliability.
This quality complete bolt carrier group will drop into any AR-15 upper receiver and features a laser-etched Phase 5 Tactical logo on the visible side.

Durable Construction & High-Quality Finish
The Phase 5 Weapon Systems M16 Cut Bolt is machined from 9310 Carpenter Steel while the carrier itself is made from 8620 Steel. The bolt is high pressure tested, and magnetic particle inspected while the carrier is heat-treated and chrome-lined with a black phosphate coating resulting in less wear on your receiver, and more reliable function over time.
Black phosphate also reduces friction, minimizes the need for lubricants and cleaning, and provides excellent corrosion resistance for a lifetime of use. The complete bolt carrier group includes a cam pin, firing pin, gas key, and bolt.
Features:
- Heat-treated, chrome-lined carrier and gas key
- Gas key properly staked
- M16 Profile
- MPI tested
- Black phosphate coating
Specifications:
- Caliber: 5.56 NATO / .223 Rem. / 300BLK
- Weight: 11.5 oz.
- Finish: Black Phosphate
- Material:
- Carrier: 8620 Steel
- Bolt: 9310 Carpenter Steel
- Profile: M16
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Warranty & returns
Backed by the Phase 5 Warranty!
Phase 5 Warranty
All parts should be installed by a licensed, experienced GUNSMITH. You must consider the importance of every aspect involved with a proper installation. Improperly installed components can cause malfunctions, weapon failures, serious injury, or even death. PHASE 5™ WILL NOT WARRANTY COMPONENTS DAMAGED BY CUSTOMERS DURING INSTALLATION. All Phase 5 WSI assemblies and components have a lifetime warranty against any manufacturing defects.
Warranty Issues: email tech@phase5wsi.com with the details of the issue you are experiencing. Please include your name and contact information.
Return & Exchange Policy
You must contact us within 30 days from the date of purchase for any returns or exchanges. Email Returns@phase5wsi.com to request a Return Merchandise Authorization Form. Please include your name, contact information, and order number. All returns and exchanges must be in original condition. Any product returned DAMAGED/USED is subject to a 20% refurbishing fee. We do not accept returns or exchanges for apparel. The customer is liable for all shipping charges on non-defective items.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.












