Description
The cam pin is one of those parts most folks never think twice about. You pull the BCG apart to clean it, drop the cam pin back in whatever way it lands, and move on. Forward Controls Design teamed up with Chad Albrecht of School of American Rifle to fix that with the SCP, a TDP-spec cam pin machined from 4340 steel and heat treated to spec, then given a durable black nitride finish.
What the Dimple on the SOTAR Cam Pin Actually Does
There's a machined dimple on one side of the cam pin, and that's the whole idea. A cam pin tends to wear harder on one face, so flipping it randomly every time you reassemble creates uneven wear that eventually leaves it sloppy and loose in the bolt. Keep the dimple facing the same way every reinstall and that one side stays intact, which holds a tighter fit and cuts down wear on both the pin and the cam pin bore in the bolt.
Why the SCP Cam Pin Is About Your Bolt, Not Just the Pin
The point here isn't really saving a few bucks on a cam pin. It's reducing the wear and stress that gets passed into the bolt itself, since a loose, worn pin contributes to bolt failure over a hard-use lifespan. That's why Forward Controls runs the nitride SCP in their own SBCG carriers. It's a small, elegant upgrade that lines up with how they build everything: function first.
Fitment for the SOTAR Cam Pin
This drops into standard AR-15 and M16 bolt carrier groups with no fitting or fuss. Guys who've swapped these in report a nice tight, consistent fit across a range of carriers, and the nitride coating is slick and easy to clean. Worth noting the SCP is not compatible with the KAC SR15 BCG, so if you're running a Knight's setup you'll want to look elsewhere. For everyone else building a duty gun or just wanting a longer-lasting BCG, it's about as easy an upgrade as it gets.
Key Specifications
- Manufacturer: Forward Controls Design
- Model: SCP (SOTAR Cam Pin)
- Manufacturer Part Number: SCP, NITRIDE
- UPC: 686162347872
- Material: 4340 Steel
- Finish: Black Nitride
- Heat Treatment: Per TDP Specs
- Design Feature: Machined dimple witness mark for consistent orientation
- Platform: AR-15 / M16
- Compatibility Note: Not compatible with KAC SR15 BCG
- Collaboration: Chad Albrecht, School of American Rifle (SOTAR)
- Country of Origin: Made in USA
What’s Included
- Forward Controls Design SOTAR Cam Pin (SCP), Nitride Coated
Frequently Asked Questions
What does the dimple on the SOTAR Cam Pin do?
The machined dimple is a witness mark that lets you reinstall the cam pin in the same orientation every single time. Since a cam pin wears harder on one side, keeping it oriented the same way each reassembly keeps that wear even. The result is a tighter, more consistent fit in the bolt over the life of the part.
Will the SCP cam pin fit my AR-15 bolt carrier group?
Yes, it's built to TDP spec and drops into standard AR-15 and M16 bolt carrier groups with no fitting needed. Users report it fits nice and tight across a variety of carriers. The one exception is the KAC SR15 BCG, which the SCP is not compatible with.
What's the difference between the nitride and NP3 versions of the SOTAR Cam Pin?
The dimensions, 4340 steel, and dimpled design are identical between the two. The difference is the coating: this one gets a durable black nitride finish, while the other option uses NP3 nickel-Teflon. Both are slick and easy to clean, so it comes down to your finish and budget preference.
Is the SOTAR Cam Pin really worth upgrading over a standard cam pin?
For a duty gun or any rifle you run hard, it's an easy call. Reducing uneven wear helps protect the bolt itself, and worn cam pin fitment is a known contributor to bolt failure. It's a small, simple part that quietly extends the service life of a much more expensive BCG.




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