Adjustable Set Screw Allows Proper Alignment For Opening And Closing On Receiver Specifications for Guntec USA Gen 3 AR-15 Ejection Port Dust Cover Assembly: Manufacturer: Guntec USA Gun Model: AR-15 Fabric/Material: T6 6061 Aluminum Cartridge: .223 Remington Features of Guntec USA Gen 3 AR-15 Ejection Port Dust Cover Assembly Complete Assembly – Includes Dust Cover, Rod, Spring, And Clip Adjustable Set Screw Allows Proper Alignment For Opening And Closing On Receiver Gen 3 Design Recommended For Billet Uppers Only Package Contents: Guntec USA Gen 3 AR-15 Ejection Port Dust Cover Assembly
6 reviews for Guntec USA Gen 3 AR-15 Ejection Port Dust Cover Assembly
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YS –
absolute junk does not fit aero upper. Had to file down the detent part to make fit. Ended up in the trash. Came with tons of anodizing flaws and some small chips. You will not be happy with this dust cover as other reviews have mentioned
DroneShotFPV –
What can I say? I know… This is a GREAT dust cover, which has been the absolute EASIEST to install in my many years of building AR platform rifles. The bar it comes with is so smooth and easy to run through the mounting holes for the dust cover that I kid you not, it took longer to twist the spring around properly than it did to push the bar through! All in all took me literally 4 minutes to swap out my old, put the new in and be done. In fact the adjustment for the stop pin / close pin for the port to retain shut took the most time (not hard, just saying it was the longest part lol).Color is amazing, looks sleek enough as it matches all my billet components. Love it, recommend it!
Ash –
I purchased one of these in the anodized black and the finish is flawless. Installed it on my Foxtrot Mike fm15 upper and the fit is great. (It fits like a standard dust cover) Overall I think it's a nice product. Not sure why the other reviews are so bad but perhaps they have better quality control now?
Kevin James –
I've tried this on multiple upper receivers including Aero Precision (mil-spec and M4E1), Anderson, WMD, store-brand generics, anodized, Cerakoted, and raw, and it doesn't fit any of them. The radius on the the upper ends is the same as on a mil-spec door, but the mil-spec door is a flimsy piece of sheet steel. The radius is simply too sharp for the thicker billet aluminum to fit into the recess on the side of any upper receiver. The Timber Creek billet ejection port door has a larger radius, so it fits, but it's about 50/50 on actually latching and even less on staying latched, so I can't win with a billet door….
Regular Customer –
Overall the quality of the part was perfect. Great color and consistency in the finish. Unfortunately the rod channel was ~1/8-3/16" too wide to fit any of my Mil-Spec AR15 uppers. It's almost like someone mis-labeled the parts and they're really AR10 dust covers.
Swish –
This dust cover does not close tightly, and there is only a set screw to keep it in the closed position