Cryptic Coatings

Cryptic Bolt Carrier Group BCG - Complete .223/5.56/.300 AAC Blackout Left Hand Mystic Midnight

All Cryptic Coatings bolt carrier groups

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Cryptic Coatings Cryptic Bolt Carrier Group BCG - Complete .223/5.56/.300 AAC Blackout Left Hand Mystic Midnight - Bolt Carrier Group for AR-15 - view 1
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Cryptic Coatings

Overview

The Cryptic Bolt Carrier Group (BCG) is designed for the .223 Remington caliber, offering a complete assembly that ensures reliable cycling and performance in your AR-15 build. This left-hand version provides a unique configuration for left-handed shooters, allowing for smooth operation and ejection without interference. Builders often incorporate this BCG in custom left-handed setups or precision builds where reliability and ease of handling are essential.

Specifications

MPNCC0109LH
Caliber.223 Remington

Available Merchants(1)

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$261.25
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October 2026 on GunPartPicker

Cryptic Bolt Carrier Group BCG - Complete .223/5.56/.300 AAC Blackout Left Hand Mystic Midnight ranked #143 of the 258 bolt carrier groups builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #190 of the 549 bolt carrier groups builders have added.

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today the one retailer we track has it in stock. Prices barely moved in October 2026, holding around $226.99, with no real sale all month. Buying today, the lowest price is $261.25 at Optics Planet, above October's low of $226.99, so a better deal may come back.

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Frequently Built With

The part most often added in each category by the builds that include this one

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11

Lower Receiver$285in 20% of them
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black

Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black

Charging Handle$45in 20% of them
ABC RIFLE COMPANY AR-15 .223 Remington/5.56x45mm NATO Pistol 10in Barrel Custom 10in Slanted M-LOK Handguard Complete Upper Receiver w/BCG And

ABC RIFLE COMPANY AR-15 .223 Remington/5.56x45mm NATO Pistol 10in Barrel Custom 10in Slanted M-LOK Handguard Complete Upper Receiver w/BCG And

Upper Receiver$450in 20% of them
Firefield Rival Foregrip for AR-15 Rifle, Black - FF35004

Firefield Rival Foregrip for AR-15 Rifle, Black - FF35004

Foregrip$30in 20% of them
Rise Armament Ra-140 Rave Super Sporting Trigger Drop-In Curved

Rise Armament Ra-140 Rave Super Sporting Trigger Drop-In Curved

Trigger$99in 20% of them
Luth-AR AR-15 Buffer Tube Assembly

Luth-AR AR-15 Buffer Tube Assembly

Buffer Tube$47in 20% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

90.1%
AR-1590.1%
AR-106.9%
AR-93%

Caliber

69.3%
5.56 NATO69.3%
.223 Wylde8.7%
300 Blackout8.7%
.308 Win5.4%
9mm2.7%
Other5.1%

Gas System

50.7%
Mid-Length50.7%
Carbine26.9%
Pistol10.7%
Rifle10.2%
Blowback1.1%
Other0.3%

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