Armacon ARM-287 Receiver Extension Locknut Wrench
- $39
In short: Armacon ARM-287 Receiver Extension Locknut Wrench connects compatible single-notch receiver-extension locknut to single-hook locknut wrench interface.
Compatibility matrix
| Documented hosts | AR-standard receiver-extension locknuts used with Mil-Spec or Com-Spec extensions |
|---|---|
| Required interface | compatible single-notch receiver-extension locknut |
| Resulting interface | single-hook locknut wrench interface |
| Do not select for | locknuts without a compatible notch and unrelated proprietary profiles |
Selection checkpoint: Confirm the exact host, configuration and interface before ordering. Similar dimensions do not confirm compatibility.
Technical specifications
| Part number | ARM-287 |
|---|---|
| Construction | Hardened steel with corrosion-resistant surface treatment |
| Documented specification | Single locknut hook; standard-bit socket |
| Packaging | Zip-lock package |
Installation
Seat the single hook fully in the compatible locknut notch and apply controlled hand torque while keeping the wrench aligned.
What's in the Box
| ARM-287 locknut wrench ×1 | Manufacturer package |
Frequently asked questions
Which hosts are documented?
AR-standard receiver-extension locknuts used with Mil-Spec or Com-Spec extensions.
Which interface is required?
compatible single-notch receiver-extension locknut.
What interface does it provide?
single-hook locknut wrench interface.
What should be checked before ordering?
Confirm the exact host, configuration and interface rather than relying on visual similarity.
Zenitco Specs
General
Mounting & Rails
Kit Contents
Care & Chemicals
Reviews from customers
Used this product? Share your experience to help other customers choose.
