Standard AR-15 takedown and pivot pins get the job done, but their flush profile makes removal with dirty or cold hands more difficult than it needs to be. The CMMG 55AFF3B HD pin set addresses that with two straightforward improvements: each pin is slightly longer than mil-spec to give you more to grip, and each features a divot machined into the body so your fingernail or a pointed tool has a positive seat for pushing the pin out. Simple changes, noticeably better field-strip experience.
CMMG 55AFF3B Kit Contents
- 1x CMMG HD takedown pin — black finish, divot, slightly longer than standard
- 1x CMMG HD pivot pin — black finish, divot, slightly longer than standard
HD vs Standard Mil-Spec Takedown Pins
Standard mil-spec takedown and pivot pins are plain cylinders — no grip features and no extra length. They function correctly but offer no advantage for removal. The CMMG HD designation means these pins have been modified specifically to make disassembly easier: the added length gives your fingers more surface area to push against, and the divot gives a tool or fingernail a defined contact point rather than a smooth round surface. Detents and springs are not included and should be sourced separately.
CMMG 55AFF3B Specifications
| Manufacturer | CMMG |
|---|---|
| SKU | 55AFF3B |
| UPC | 815835017563 |
| Type | Heavy Duty (HD) Pivot & Takedown Pin Set |
| Color / Finish | Black |
| Length | Slightly longer than standard mil-spec |
| Feature | Divot for grip and easier removal |
| Compatibility | AR-15 mil-spec lower receivers |
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