+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

New! Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Up to $9.75 Off w/ Free Shipping — 2 models

Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
1 of 4 images
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
2 of 4 images
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
3 of 4 images
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group
4 of 4 images
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group

Tap Tap to Zoom

You May Also Like
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI556BLK-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI556BLK-30RD
(59)
List: $18.95 $17.95 Save Up to $1.00
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG556-MCT-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG556-MCT-30RD
(59)
List: $18.95 $17.95 Save Up to $1.00
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG557-MCT-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG557-MCT-30RD
(41)
List: $15.95 $14.75 Save Up to $1.20
Amend2 Banana Mod-2 Magazine, AR-15/M4/M16, 5.56x45mm NATO/.223 Remington, 30 Round, Yellow, 1 Pack, Polymer, 556BANANA30-30RD
Amend2 Banana Mod-2 Magazine, AR-15/M4/M16, 5.56x45mm NATO/.223 Remington, 30 Round, Yellow, 1 Pack, Polymer, 556BANANA30-30RD
(1)
List: $31.99 $22.99 Save Up to 28%
Amend2 Mod-3 Magazine, AR-15/M4/M16, 7.62x35/.300 AAC Blackout, 30 Round, Black, 300MOD3BLK30-30RD
Amend2 Mod-3 Magazine, AR-15/M4/M16, 7.62x35/.300 AAC Blackout, 30 Round, Black, 300MOD3BLK30-30RD
List: $24.97 $16.99 Save Up to 32%
Coupon Available PMC Ammunition 556K X-Tac, 5.56x45mm NATO, 62 grain, Light Armor Piercing, Brass, Centerfire Rifle Ammo, 20, 5.56
PMC Ammunition 556K X-Tac, 5.56x45mm NATO, 62 grain, Light Armor Piercing, Brass, Centerfire Rifle Ammo, 20, 5.56
(116)
List: $14.99 $11.89 Save Up to 21%
Blazin' Deal TRYBE Defense 16 in Blackout Government Profile AR Carbine Barrel, .300, 5/8X24 Threads, Nitride, Black, BARCARBT16300
TRYBE Defense 16 in Blackout Government Profile AR Carbine Barrel, .300, 5/8X24 Threads, Nitride, Black, BARCARBT16300
(12)
List: $179.99 $86.84 Save Up to 52%
Blazin' Deal TRYBE Defense Muzzle Brake .223/5.56, 1/2x28, Black, TRBDMZBK20-BK
TRYBE Defense Muzzle Brake .223/5.56, 1/2x28, Black, TRBDMZBK20-BK
(19)
List: $89.99 $39.00 Save Up to 57%
Blazin' Deal TRYBE Defense Cowl Induction Muzzle Brake, 5.56/.223 Remington, 5/8x24, Black, TRBCIB55658x24
TRYBE Defense Cowl Induction Muzzle Brake, 5.56/.223 Remington, 5/8x24, Black, TRBCIB55658x24
(47)
List: $132.99 $47.95 Save Up to 64%
Free 2 Day Shipping Troy Top Mounted Deployable Rear Sight for AR-15, Black, SSIG-FBS-RTBT-00
Troy Top Mounted Deployable Rear Sight for AR-15, Black, SSIG-FBS-RTBT-00
(28)
List: $242.00 $225.49 Save Up to $16.51
Questions & Answers

New Product

See more new Cryptic Gun Parts items
We’ve just added this new product to OpticsPlanet. Be the first to get it!
2 Models Available
Color
All
Caliber
All
Search
Click to select this item for your bundle offer!

  • Select a specific model above to see the deal!
  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $346.99
You Save Up to $13.00
OP Bucks$7.99
Expert AdviceRequest for QuotePrice Match

Product Info for Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group

Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin. BCG includes heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158 steel and shot peened for increased strength per Mil-Spec; includes tool steel extractor with spring and viton O-ring; firing pin chromed finished with firing pin retaining pin and cam pin.image

HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected).

Specifications for Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group:

Manufacturer: Cryptic
Finish: Matte
Caliber: .300 AAC Blackout, .223 Remington
Gun Make: AR Platform
Gun Model: M16, M4, AR-15

Features of Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group

  • Mil-Spec BCG Machined from 8620 Aircraft Quality Steel and heat treated to 60-61 RC
  • Mil- Spec Gas Key
  • Key Staked with Grade 8 Screws, per Mil-Spec
  • Mil-Spec Carpenter 158 Bolt w/ Spring and Ejector
  • Tool Steel Extractor w/ Spring and viton O-ring
  • Mil-Spec Firing Pin w/ Chrome Finish
  • Mil-Spec Cam Pin
  • Full Auto Carrier (Backward compatible with all semi-auto rifles)

Package Contents:

  • Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group

What firearm models does the manufacturer say Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group is compatible with?

The manufacturer says that Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group is compatible with AR-15, M4, M16

Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Orderable Models

List of Orderable Models

  • Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group, Left Handed, Black Nitride, CC-0106-LH , MPN: CC-0106-LH , Code: 4ZT-BCG-BLG1-CC-0106-LH
  • Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group, Left Handed, Nickel Boron, CC-0105-LH , MPN: CC-0105-LH , Code: 4ZT-BCG-BLG1-CC-0105-LH
Compare (0)
1 item has been added
Add at least two items to compare
Last updated 2026-09-23 UTC.