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This is the real deal factory castle nut for the Springfield M1A and M14 platform, the small but important part that clamps the flash suppressor and front sight assembly onto the barrel. It slides into the flash suppressor body and threads down to hold everything snug against the barrel splines. If yours has walked off, gotten buggered up, or you're building out a spares kit, this is the part you want.
On the M1A and M14, the flash suppressor doesn't thread onto the muzzle the way you might expect. It slips into grooves on the barrel and gets locked down by this castle nut, which is then held from backing off by a small set screw below the front sight. When that nut loosens up, the whole flash hider and front sight assembly can start to rattle, and that will absolutely open up your groups at the range. A properly torqued castle nut keeps your sight picture consistent and your point of impact where it belongs.
This is a genuine OEM Springfield Armory component, part number MA0312, made from matte blued steel to match the finish on your existing muzzle hardware. It fits the whole M1A family chambered in .308 Winchester, 7.62x51mm NATO, and 6.5 Creedmoor, including Standard, Loaded, Scout Squad, and SOCOM variants. Because it's made to the same standards as the original, it indexes and threads the way it should without any fuss.
Plan on grabbing a set of M1A castle nut pliers to do the job right, since the slots on the nut need a proper tool to avoid marring it. Most folks pull the barreled action from the stock, set the barrel in a padded vise, back out the set screw, and thread the nut down until the flash suppressor seats and the front sight indexes at twelve o'clock. Snug and firm gets it done, no need to gorilla it down. If you've never messed with muzzle hardware before, a gunsmith can knock this out quickly.
It locks the flash suppressor and front sight assembly onto the barrel. The suppressor slides into grooves on the barrel and the castle nut threads down to hold it tight, with a set screw keeping the nut from backing off. If it loosens, the front sight can rattle and your accuracy will suffer.
Yes, it's a genuine OEM part designed for the Springfield M1A and M14 family chambered in .308 Winchester, 7.62x51mm NATO, and 6.5 Creedmoor. That covers Standard, Loaded, Scout Squad, and SOCOM variants. Since it's factory spec, it indexes and threads the way the original did.
You'll want a set of M1A castle nut pliers, which grab the slots on the nut without chewing it up. Most people pull the barreled action, clamp the barrel in a padded vise, back out the set screw, and thread the nut down until the front sight indexes at twelve o'clock. Snug and firm is all it takes, no need to overtighten.
It is. This is the factory OEM castle nut, part number MA0312, made from matte blued steel to Springfield's own standards. The finish matches the rest of your muzzle hardware, so it's a clean replacement for a lost or worn nut.
| UPC | 706397857776 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MA0312 |
| Model |
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