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The ejection port cover spring is one of those tiny parts that nobody thinks about until it lets go, and then your dust cover flops around or won't stay open when the bolt cycles. This 10-pack from White Label Armory gives you a solid supply of Mil-Spec springs to keep on the bench, so a worn or broken one never puts a build or a range trip on hold.
These springs are built to Mil-Spec dimensions and finished with a black oxide coating that helps fight off rust and general wear over the long haul. They fit both AR15 and AR10 style upper receivers, which is handy if you bounce between platforms. Springs are considered wear items with a limited service life, so having a stack of spares is just smart maintenance rather than a maybe-someday purchase.
The spring does the actual work of the dust cover assembly. When the bolt travels rearward from charging or firing, it forces the cover open, and this little torsion spring holds it there so fired brass clears the port cleanly. Close the cover and it snaps shut and stays shut, protecting your internals from dust, sand, and grit until you're ready to run the gun again. When one gets tired or snaps, ejection can get sloppy or the cover just won't behave.
Buying these ten at a time makes sense for anyone assembling uppers regularly, running an armorer's bench, or stocking a maintenance kit. Install does take some patience since the spring has to be twisted a half turn to load tension while you slide the hinge pin through, and it's easiest to do before the barrel and handguard go on. Toss a few in your parts box, your range bag, and your build kit, and you'll always have one when it counts. Made in the USA start to finish.
Yes, they're made to Mil-Spec dimensions and work with both AR15 and AR10 style upper receivers. That covers the vast majority of standard AR-platform uppers out there. If your upper takes a standard mil-spec dust cover assembly, this spring is the right one.
It takes a little patience more than any special skill. The spring has to be twisted roughly a half turn to load the tension while you slide the hinge pin through the cover, so the legs push the door to the open position. It's much easier to do while the upper is stripped, before the barrel and handguard are installed, so plan around that if you're swapping one on an assembled rifle.
Springs are wear items with a limited service life, and they're small enough to lose during a build or maintenance. Buying ten at a time keeps spares in your parts box, range bag, and build kit so a broken or missing spring never stalls a project. It's also a natural fit for armorers and anyone assembling uppers on a regular basis.
The black oxide finish adds a layer of corrosion resistance and helps the spring hold up over the long haul. It also gives the spring that standard flat black look that blends right into a mil-spec build. Keeping it lightly oiled like the rest of your parts will only help it last.
| UPC | 810155161118 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | WLA-PAC-2002-10 |
| Model |
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