Your cart is empty.
Your cart is empty.The TopStop cover is designed to snap onto most compatible upper receivers when detached from the lower receiver. It completely seals the upper receiver, preventing fouling from getting in or out, and keeps the bolt and handle secure while the upper is being moved.
M. Alex Cerney
Reviewed in the United States on July 29, 2024
It snaps right on and keeps the BCG from falling out of the upper. Even worked on the CMMG with the radial delayed system on the 9mm. Highly recommend this product.
Big juan
Reviewed in the United States on March 10, 2024
Works well for keeping my other uppers clean and together until use buying more for rest of my uppers good product no complaints from this guy appreciate the craftsmanship
AttaboyAdley
Reviewed in the United States on April 30, 2024
I ordered both the black and yellow Top Stop. 3 total. All 3 are too loose on most on the rear takedown lug. I had to use Ranger bands to keep the dust covers on. When they do fit, it's got a nice positive click on the rear takedown lug. I wish the mould was a little longer on the detents that fit inside the rear takedown lug so you can simply shave them down if the Top Stop as too tight. Better than being too loose.
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