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Most castle nuts and end plates are an afterthought, the last thing you spin on when you build a lower. Strike Industries flipped that idea on its head. This blue set pairs a lengthened steel castle nut with an extended QD end plate that repositions the sling swivel where it belongs, giving your AR a finished look and a genuinely better sling setup in one drop-in swap.
The standard flat QD end plate puts the swivel right where the web of your support hand wants to sit, which leads to that sharp pinch when you're running the gun hard. Strike moved the QD mount rearward and centered it so it feeds a sling comfortably for right or left hand shooters. That center placement is truly ambidextrous, so it works no matter which side you sling from or which shoulder you shoot off of. In tight spaces and under stress, that small change makes a real difference in how the rifle handles.
The steel castle nut is lengthened to match the extended end plate, which means it engages more of the receiver extension's threaded area for stronger support and a cleaner overall fit. It also cuts down on the fiddly parts of a build, with a set screw that simplifies getting the takedown pin detent seated. Both pieces weigh in right around an ounce each, so you're not adding meaningful weight to the rifle.
One thing worth knowing up front: because the castle nut is longer, the fully collapsed position on most stocks goes away to make clearance for the QD socket. You'll also want enough thread on your buffer tube, and some standard tubes come up short. If your tube has a minimum of around 1.18 inches of thread, you're in good shape, and Strike's own enhanced buffer tube is a safe pairing if you're building from scratch. Installation is otherwise a straightforward drop-in with a standard castle nut wrench.
It's built for standard AR platform receiver extensions, but because the castle nut is lengthened, your buffer tube needs enough thread to fully engage it. Aim for roughly 1.18 inches (30mm) of thread minimum. Some standard commercial tubes run short on thread, so if you're building fresh, pairing it with an enhanced buffer tube is the safe bet.
Yes. Because the castle nut is longer to make room for the QD socket, the fully collapsed position on most stocks is lost. For most setups this is a non-issue, but if you rely on that last inch of collapse for storage or a specific length of pull, it's good to know going in.
You can. The QD swivel mount is positioned center and rearward, which makes it fully ambidextrous for right or left hand shooters. That placement also pulls the swivel away from the web of your support hand, so you skip the painful pinch you get with a flat, standard QD end plate.
Installation is a straightforward drop-in with a common castle nut wrench, and the set screw simplifies seating the takedown pin detent. Torque it properly and stake it per your usual build practice for a permanent setup. Following standard AR assembly steps will keep everything locked in during use.
| UPC | 708747545616 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARECN&EEPBLU |
| Product Type | Castle Nut/End Plate |
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