Image unavailable
Ar-15 Stripped Upper Receivers - Ar-15 Stripped Upper Receiver No Auto Sear Cut
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$119.99
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100042566
Overview
Built for shooters starting an AR-15 project from the ground up, this stripped upper receiver provides the core foundation for a custom assembly. It is configured without the auto sear cut, making it semi-automatic only, and it is compatible with standard AR-15 components as well as AR-15 or M16 bolt carriers. The receiver includes M4 feedramps and a mil-spec Picatinny rail, with a matte black hard anodized finish for a clean, utilitarian look. Available with or without the forward assist, it suits builders who want a straightforward upper to match their preferred setup.
Why Hunters Choose the Aero Precision
Stripped Upper
Skeleton supports a build-from-scratch AR-15
Available Without
Or without the forward assist
Omit Auto
Sear cut, making them semi-automatic
Compatible Standard
Standard AR-15 or M16 bolt
Machined M4
M4 feedramps and mil-spec Picatinny
Key Features
- Stripped AR-15 upper receiver for building from scratch
- Available with or without a forward assist
- Omit the auto sear cut for semi-automatic use
- Compatible with standard AR-15 or M16 bolt carriers
- Machined with M4 feedramps
- Features mil-spec Picatinny rails and matte black hard anodized finish
Best Used For
- For builders starting an AR-15 project from a stripped upper receiver
- For semi-automatic-only builds where an auto sear cut is not desired
- For users wanting compatibility with standard AR-15 or M16 bolt carriers
- For those selecting a stripped upper with optional forward assist configuration
- For builders needing M4 feedramps and mil-spec Picatinny rail features
Specifications
| Auto Sear Cut | No auto sear cut |
|---|---|
| Blade Finish | Matte black hard anodized finish |
| Compatibility | Standard AR-15 components, including AR-15 or M16 bolt carriers |
| Feedramps | M4 feedramps |
| Forward Assist | Available with or without forward assist |
| Rail Type | Mil-spec picatinny rails |
| Semi Automatic Only | Yes |
Pros
- Stripped upper skeleton supports a build-from-scratch AR-15 project
- Available with or without the forward assist for build flexibility
- Omit the auto sear cut, making them semi-automatic only
- Compatible with standard AR-15 or M16 bolt carriers
- Machined with M4 feedramps and mil-spec Picatinny rails
- Finished in matte black hard anodized coating
Considerations & Trade-offs
- This upper omits the auto sear cut, so it is limited to semi-automatic use and is not intended for configurations that require that feature.
- It is sold as a stripped upper receiver, so additional AR-15 components are needed to complete the build.
- Uppers are available with or without the forward assist, so buyers need to confirm they are selecting the version that matches their build plan.
- The matte black hard anodized finish is functional and understated, but it is a finish specification rather than a performance claim.
Suggested Comparisons
- AR-15 upper receivers
- Stripped upper receivers
- AR-15 build components
Suggested Accessories
- Upper receiver
- Bolt carrier group
- Forward assist assembly
- Picatinny rail accessories
Frequently Asked Questions
Is this upper receiver compatible with standard AR-15 parts?
Yes. The source states that standard AR-15 components, including AR-15 or M16 bolt carriers, will function with these upper receivers.
Does this upper receiver have an auto sear cut?
No. The product description says these upper receivers omit the "auto sear" cut and are semi-automatic only.
Does it come with a forward assist?
Uppers are available with or without the forward assist, according to the source data. The specific configuration for this listing is not stated in the provided text.
What features are listed on the receiver?
The source lists M4 feedramps, mil-spec Picatinny rails, and a matte black hard anodized finish.
Who makes this upper receiver?
The manufacturer listed in the source data is Aero Precision.