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Aob

Wheeler 156243 AR Pivot Pin Install Tool Delta AR Pivot Pin Install Tool

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Fits Ar-15,

M4, and M16 platforms

Helps Install

Pivot spring and detent

Includes Roll

Pin punch and starter

Lower Receiver

Roll pins

Comes Handy

A handy key ring for

$12.99
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SKU: 156243-661120562436

Overview

Built for AR-15, M4, and M16 lower receiver work, this Wheeler Delta Series tool is aimed at simplifying pivot spring and detent installation while also serving as a roll pin punch and starter for lower receiver roll pins. It is a practical bench accessory for builders and armorers who want a more controlled way to handle small parts during assembly. A handy key ring adds convenient storage, so it stays easy to keep with your other shop tools. The black zinc plated steel construction gives it a straightforward, no-frills finish suited to regular workshop use.

Why Hunters Choose the Aob

Compatible Ar-15,

AR-15, M4, and M16 platforms

Designed Make

Pivot spring and detent installation

Includes Roll

Pin punch and starter for

Handy Key

Ring included for convenient storage

Black Zinc

Plated steel construction

Key Features

  • Fits AR-15, M4, and M16 platforms
  • Helps install pivot spring and detent
  • Includes roll pin punch and starter
  • Designed for lower receiver roll pins
  • Comes with a handy key ring for storage
  • Made of black zinc plated steel

Best Used For

  • AR-15, M4, or M16 owners installing pivot springs and detents during lower receiver assembly
  • Builders who want a simple tool for starter use on lower receiver roll pins
  • Armorers or hobbyists looking for a compact tool with key ring storage
  • Users who prefer a dedicated install tool for faster pivot pin setup

Specifications

CompatibilityAR-15, M4, M16
FunctionMakes pivot spring and detent work fast and effortless
IncludesRoll Pin Punch and starter for all lower receiver roll pins
Key RingIncluded
Manufacturer Number156243
MaterialBlack zinc plated steel

Pros

  • Compatible with AR-15, M4, and M16 platforms.
  • Designed to make pivot spring and detent installation fast and effortless.
  • Includes a roll pin punch and starter for lower receiver roll pins.
  • Handy key ring included for convenient storage.
  • Black zinc plated steel construction.

Considerations & Trade-offs

  • Designed for AR-15, M4, and M16 use, so it is not a general-purpose tool for other platforms.
  • The tool is focused on pivot spring, detent, and lower receiver roll pin work rather than broader gunsmithing tasks.
  • Black zinc plated steel is listed, but no further material or durability details are provided.
  • A key ring is included for storage, but the compact format may not suit users who prefer a larger dedicated bench tool.

Suggested Comparisons

  • AR lower receiver assembly tools
  • Roll pin punch sets
  • Pivot pin installation tools
  • AR armorer tools

Suggested Accessories

  • Roll pin punch set
  • Bench block
  • Small parts tray
  • Armorer's tool kit

Frequently Asked Questions

What rifles is this Wheeler pivot pin install tool made for?

It is listed for the AR-15, M4, and M16.

What does this tool help with during installation?

The description says it makes the pivot spring and detent work fast and effortless.

Does this tool include anything for lower receiver roll pins?

Yes. It includes a roll pin punch and starter for all lower receiver roll pins.

Is there a storage option included with the tool?

Yes. It comes with a handy key ring for storage.

What is the tool made of?

The product is described as black zinc plated steel.