Aero Precision APCS100837: The Aero Precision BREACH is a rugged, ambidextrous, precision-manufactured charging handle for the AR15 platform. The BREACH's design utilizes a reinforced 7075-T6 aluminum bar that is up to the most demanding tasks. Its ambidextrous levers feature a patent-pending, dual spring system, that directs the force-of-use into the robust charging handle body. This allows the shooter to use a one-sided charging technique without compromising the part — a pitfall for traditional mil-spec charging handles.
The large lever configuration provides an extended operating surface, perfect for a user with bigger hands, or someone who wants a larger surface for manipulation of the charging handle.
Features:
- Ambidextrous Controls: Ergonomically designed 7075 Aluminum levers allow the user to easily charge their firearm with either hand, while remaining low profile and comfortable when slung.
- Robust Construction: Reduced chamfer angles on the 7075 Aluminum reinforced bar design provide a strong foundation for the BREACH® that is resistant to rotational flex or breakage.
- Patent-pending Lever Mechanism: Transfers force-of-use away from the roll pins and into the top/head portion of the reinforced bar protecting the charging handle in the most demanding circumstances.
- Gas Deflection Shelf: Aligns with the upper receiver to redirect gas flow away from the users face when shooting suppressed.
- Functional Design: It is not all just good looks. Stylistic cuts on the charging handle also help to clear stuck on carbon and debris from the upper receiver, while the spacer design seals and protects the lever mechanism from debris.
The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the demands of the most extreme conditions. Each component and manufacturing process of the PRO 5.56 Bolt Carrier Group was deliberately chosen to increase the reliable service life of the bolt carrier group and its components.
Bolt
The bolt is one of the most important parts of the bolt carrier group. Machined from 9310 steel, a proprietary flash nitride process was chosen to ensure proper heat treatment on the bolt. When properly heat treated, 9310 steel provides superior strength and durability when compared to C158.
The cam pin channel is counter bored, eliminating the need for swaging. Swaging is the industry standard, however this process creates more stress on the bolt during manufacturing by displacing material rather than cutting it to the proper dimension from the start.
- Machined from 9310 steel
- Shot peened
- MPI tested
- Proper heat treatment ensured via proprietary flash-nitriding process
Cam Pin
Each PRO cam pin is precision ground after heat treatment to exacting specifications and given a nitride finish.
The cam pin features an engraved indexing mark on one side of the cam pin face; a concept that has been popularized by Chad Albrecht at School of the American Rifle. Cam pins traditionally wear more heavily on one side and when installed inconsistently can create excessive wear over time. When the cam pin becomes “loose” this can create excessive wear on the bolt itself shortening overall life. The indexing mark allows for consistent installation during maintenance which in turn reduces wear on not only the cam pin but the bolt over time to help extend overall service life.
- Machined from 4140 steel
- Precision ground after heat treatment
- Engraved indexing mark
- Nitride finish
Extractor
The extractor features a phosphate finish. The extractor is one of the few places where it is beneficial to have a “rougher” finish as it allows for more positive engagement with the case when pulling it out of the chamber.
- Machined from 4140 steel
- Heat treated
- Shot peened
- Phosphate finish
Carrier
Each PRO BCG utilizes a M16 cut carrier and features a nitride finish. Internal critical surfaces are precision ground to exacting tolerances to ensure optimal gas efficiency. The same machining standards are used for the carrier rails providing a super smooth fit and function from the start.
- Machined from 8620 steel
- M16 Cut Carrier
- Nitride Finish
- Critical surfaces precision ground for optimal gas efficiency and reliability
Gas Key
- Machined from hardened 4140 steel
- Torqued to spec with grade 8 hex fasteners
- Properly staked to mil-spec
- Nitride finish
Ejector
- Machined from S7 tool steel
Firing Pin
- Ground from 8640 steel
- Nitride Finish
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