Description
If you've got an AR with a collapsible stock but nowhere solid to attach a sling, the Troy Professional Grade Sling Adapter is the straightforward answer. It slides over your existing receiver extension and locks everything in place without requiring any modifications to the rifle. Most people are done installing it faster than they can explain what it does.
Why the Troy Professional Grade Adapter Matters
The main thing this adapter does is prevent castle nut rotation. Your stock can loosen over time if that nut starts backing off, and this design catches and secures it by clamping over the entire extension. You get two solid attachment points for quick-detach swivels on either side, giving you genuine ambidextrous mounting. The whole thing indexes to the upper receiver so there's no twisting or flexing once it's tightened down.
Built Like Troy Makes Everything
It's made from hardened 6061-T6 aluminum with a military-spec hardcoat anodized finish that actually holds up to regular use. The stainless push-button QD swivel included handles slings up to 1.25 inches wide and rotates full 360 degrees. Beveled edges keep it from snagging on gear when you're moving. The whole unit weighs just over 2 ounces and keeps a low profile around the charging handle.
Installation Takes Minutes
You remove your buttstock, slip the adapter over the receiver extension and castle nut, tighten the crossbolt with an included hex key, and you're done. No gunsmithing. No special tools beyond what comes in the box. Most people report being finished in under two minutes. Because you're not modifying the rifle itself, you're not locked into this adapter either—swap it out anytime if your needs change.
Key Specifications
- Manufacturer: TROY Industries
- Manufacturer Part Number: SMOU-PGR-00BT-00
- UPC: 812699010280
- Material: 6061-T6 Hardened Aircraft Aluminum
- Finish: MIL-A-8625 Type III Class 2 Hard Coat Anodized with Teflon
- Color: Black
- Mounting Platform: Adjustable Receiver Extension Tube
- Attachment Points: Ambidextrous Quick-Detach
- Swivel: Blackened Stainless Push-Button QD
- Sling Capacity: Up to 1.25 inches
- Weight: 2.27 oz
- Installation Time: Less than 2 minutes
- Gunsmithing Required: No
- Made in: USA
What’s Included
- Troy Professional Grade Sling Adapter
- Blackened stainless push-button QD swivel
- Hex key wrench for installation
Frequently Asked Questions
Will this adapter work with my specific stock or buffer tube?
The Troy adapter fits standard AR-15 and M4 adjustable receiver extension tubes. It slides over the tube and castle nut, so compatibility depends on having a standard mil-spec tube. If you've got a collapsible stock, it should work fine. Some users with certain six-position stocks report the fully collapsed position may be slightly limited, but this is minor and doesn't affect normal operation.
Can I use this adapter with a single-point sling?
Yes, the adapter provides two ambidextrous attachment points, and using one for a single-point sling is a common setup. The rear position works well for single-point carry and puts the swivel attachment point in a balanced spot on the rifle. You'll need to purchase a sling separately since only the QD swivel is included.
Does installation require removing the buffer tube?
No, the adapter slides over the existing receiver extension without requiring removal of the tube or stock assembly. You just remove the buttstock, slip the adapter on over the castle nut, and tighten the hex bolt. The whole process takes under two minutes.
Will this interfere with charging the rifle?
The adapter's low-profile design and beveled edges are specifically engineered to stay clear of the charging handle. The indexing to the upper receiver keeps it positioned where it won't snag or interfere with normal rifle operation.





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