Aero Precision

This lower parts kit does not include the fire control group, pistol grip or trigger guard.

Includes:

• Takedown/pivot Spring
• Takedown/pivot detent
• Takedown pin
• Pivot pin
• Bolt Catch
• Bolt Catch Spring
• Bolt Catch buffer
• Bolt catch roll pin
• Safety Selector
• Safety Selector spring
• Safety Selector detent
• 4-40 Set Screw (for threaded takedown pin detent hole)
• Buffer retainer
• Buffer retainer spring
• Magazine catch body
• Magazine catch spring
• Magazine catch button

The Aero Precision M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this custom engineered design provides that challenge much more expensive billet options, we have added several functional features to the lower receiver to simplify the assembly process for the at home builder.

M4E1 Lower Receiver Improvements:

• Threaded Bolt Catch Roll Pin - Allows for simple installation of the bolt catch and virtually eliminates the chance to damage the finish during installation (pin included). 1/16" Hex Key required for assembly.
• Integrated Trigger Guard - Eliminates the possibility of breaking the trigger guard tabs by integrating the trigger guard into the lower, creating a stronger more rigid platform to build upon.
• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver using a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
• Threaded Takedown Pin Detent Recess - Allows user to easily install the Takedown Pin detent and spring with the use of a 4-40 set screw (no more launching detents across the room).
• Increased Magwell Flare - Increased the flare of the magwell to aid in quick and efficient magazine changes.
• Marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.

Includes:

• Stripped M4E1 Lower Receiver
• Nylon tipped tensioning set screw
• Threaded Bolt Catch Pin

Factory BLEMs.

The Aero Precision M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this custom engineered design provides that challenge much more expensive billet options, we have added several functional features to the lower receiver to simplify the assembly process for the at home builder.

M4E1 Lower Receiver Improvements:

• Threaded Bolt Catch Roll Pin - Allows for simple installation of the bolt catch and virtually eliminates the chance to damage the finish during installation (pin included). 1/16" Hex Key required for assembly.
• Integrated Trigger Guard - Eliminates the possibility of breaking the trigger guard tabs by integrating the trigger guard into the lower, creating a stronger more rigid platform to build upon.
• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver using a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
• Threaded Takedown Pin Detent Recess - Allows user to easily install the Takedown Pin detent and spring with the use of a 4-40 set screw (no more launching detents across the room).
• Increased Magwell Flare - Increased the flare of the magwell to aid in quick and efficient magazine changes.
• Marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.

Includes:

• Stripped M4E1 Lower Receiver
• Nylon tipped tensioning set screw
• Threaded Bolt Catch Pin

The Aero Precision M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this custom engineered design provides that challenge much more expensive billet options, we have added several functional features to the lower receiver to simplify the assembly process for the at home builder.

M4E1 Lower Receiver Improvements:

• Threaded Bolt Catch Roll Pin - Allows for simple installation of the bolt catch and virtually eliminates the chance to damage the finish during installation (pin included). 1/16" Hex Key required for assembly.
• Integrated Trigger Guard - Eliminates the possibility of breaking the trigger guard tabs by integrating the trigger guard into the lower, creating a stronger more rigid platform to build upon.
• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver using a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
• Threaded Takedown Pin Detent Recess - Allows user to easily install the Takedown Pin detent and spring with the use of a 4-40 set screw (no more launching detents across the room).
• Increased Magwell Flare - Increased the flare of the magwell to aid in quick and efficient magazine changes.
• Marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.

Includes:

• Stripped M4E1 Lower Receiver
• Nylon tipped tensioning set screw
• Threaded Bolt Catch Pin

Must ship to a U.S. FFL dealer

Includes:

• Takedown/pivot Spring
• Takedown/pivot detent
• Trigger/hammer pin
• Takedown pin
• Pivot pin
• Bolt Catch
• Bolt Catch Spring
• Bolt Catch buffer
• Bolt catch roll pin
• Safety Selector
• Safety Selector spring
• Safety Selector detent
• 4-40 Set Screw (for threaded takedown pin detent hole)
• Buffer retainer
• Buffer retainer spring
• Trigger guard
• Trigger guard roll pin
• A2 pistol grip
• Pistol grip screw
• Pistol grip lock washer
• Trigger spring
• Hammer spring
• Disconnector spring
• Magazine catch body
• Magazine catch spring
• Magazine catch button
• Hammer
• Trigger
• Disconnector

Aero Precision lowers are precision machined to mil-spec dimensions, and work with standard AR15 components to ensure the highest quality with a correct component interface.

Gen 2 Features

• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver through the use of a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
• Increased Magwell Flare - Allows for easier insertion of magazines and provides a sleeker look.

AR15 Gen 2 Stripped Lower Receiver is the perfect base for your custom AR15 build. Machined to mil-spec dimensions, our lowers work with standard AR15 components and ensure the highest quality with a correct component interface.

Gen 2 Improvements

• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver through the use of a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
• Increased Magwell Flare - Allows for easier insertion of magazines and provides a sleeker look.

Includes:

• Stripped AR15 Lower Receiver, Gen 2
• Nylon tipped tensioning set screw

This product is blemished. Blemishes may include:

• Plating inconsistencies
• Pits
• Scratches
• Dents
• Flaws in finish

Aero blemished products are fully functional, they just didn't meet their high standards. They are a great product at a discounted price for someone who doesn't mind a slight imperfection.

Aero Precision lowers are precision machined to mil-spec dimensions, and work with standard AR15 components to ensure the highest quality with a correct component interface. FDE Cerakote Finish.

Gen 2 Features

• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver through the use of a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
• Increased Magwell Flare - Allows for easier insertion of magazines and provides a sleeker look.

The AR15 Stripped Upper Receiver is one of our most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit.

Features:

• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks

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 small lever configuration provides a low-profile, easily gripped interface that is comfortable when slung and can be actuated effortlessly from either side of your rifle.

• 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 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 small lever configuration provides a low-profile, easily gripped interface that is comfortable when slung and can be actuated effortlessly from either side of your rifle.

• 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 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 small lever configuration provides a low-profile, easily gripped interface that is comfortable when slung and can be actuated effortlessly from either side of your rifle.

• 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.

Features:

• Aluminum Alloy Standard Charging Handle
• Black Anodized
• Caliber - 5.56
• Made in the USA

The AR15/M4E1 Field Repair Kit features common parts that may rattle loose or break. Carry one in your range bag and always have what you need to get your rifle up and running again!

Includes:

• AR15 Takedown Pin Detent (2)
• Takedown Pin Spring (2)
• Roll Pin, Fwd Assist (2)
• Bolt Catch Spring (2)
• Bolt Catch Buffer
• Bolt Catch Roll Pin (2)
• Trigger/Hammer Pin
• Safety Selector Spring
• Safety Selector Detent
• Buffer Retainer
• Buffer Retainer Spring (2)
• Trigger Guard Roll Pin (2)
• Pistol Grip Screw
• Pistol Grip Lock Washer
• Trigger Spring
• Hammer Spring
• Disconnector Spring
• Nylon Tipped Tension Set Screw - 1/4-28 x 1/2
• 4-40 Set Screw (for threaded takedown pin detent hole) (2)
• Threaded Roll Pin
• M4E1 Lower Bolt Catch Pin

Aero Precision Mil-Spec carbine buffer spring for use in AR15 carbines with a collapsible buttstock. Perfect for your new build or as a direct replacement for worn out parts. Made in the USA.

Markings include: Property of USA, MOD M16A4, CAL. 5.56MM and has Safe/Semi/Burst safety selector markings

Includes:

• M4E1 Stripped Lower Receiver - Anodized Black
• A2 Grip - Black
• Mil-spec Lower Parts Kit
• AR15 Carbine Receiver Extension
• AR15 Carbine Buffer and Spring
• These parts are installed

M4E1 Receiver

M4 Stock and A2 Grip

Mil-Spec Lower Parts Kit

Carbine Receiver Extension

AR15 Carbine Buffer & Spring