
Availability: In Stock
The Raven Concealment Systems TopStop URG Cover in yellow is a quick-snap protective cover for detached AR-15 and M4-pattern upper receivers. If you're breaking down your rifle between range trips, storing a spare upper, or moving between shooting positions, this simple polymer cover keeps your upper receiver clean and functional while preventing dirt, dust, and debris from contaminating the bolt carrier group and charging handle. It's the kind of practical accessory that saves you cleaning time and protects precision internals from the field conditions that come with hunting, tactical training, or any serious shooting work.
The TopStop snaps securely onto most standard AR-15 and M4-type uppers when they're separated from the lower receiver—no tools needed. The tough polymer construction handles rough handling in a gun bag or on a truck bed. Its sealed design stops the bolt carrier group and charging handle from sliding out during transport or handling, which matters when you're managing multiple uppers or switching configurations mid-session. The bright yellow color makes it easy to spot in a range bag or parts bin.
This cover is built for shooters who maintain their own rifles, run multiple uppers, or need a no-fuss way to keep a spare upper protected. Whether you're a competition shooter rotating barrels, a hunter managing different setups for different game, or anyone who regularly detail-strips an AR platform rifle, the TopStop eliminates one more thing to worry about during maintenance or transport.
| Brand | Raven Concealment Systems |
| Product Name | TopStop URG Cover |
| Color | Yellow |
| Compatibility | AR-15 and M4-pattern upper receivers (detached from lower) |
| Material | Polymer |
| Installation | Snap-fit, no tools required |
The TopStop is designed to snap onto most standard AR-15 and M4-pattern upper receivers. It only works when the upper is detached from the lower receiver. If you have a non-standard or heavily modified upper, verify compatibility before purchase.
The TopStop seals your detached upper receiver to prevent dirt, dust, and debris from getting inside and fouling the bolt carrier group and charging handle. It also keeps internal parts from sliding or shifting during transport and handling.
No. The TopStop snaps on with no tools required. Simply snap it onto your detached upper and you're done.
No. The TopStop is designed only for detached upper receivers. Once you reassemble your upper to the lower receiver, you'll need to remove the cover.


SKU: 200189786 • Weight: 1.55oz





Availability: In Stock
The Raven Concealment Systems TopStop URG Cover in yellow is a quick-snap protective cover for detached AR-15 and M4-pattern upper receivers. If you're breaking down your rifle between range trips, storing a spare upper, or moving between shooting positions, this simple polymer cover keeps your upper receiver clean and functional while preventing dirt, dust, and debris from contaminating the bolt carrier group and charging handle. It's the kind of practical accessory that saves you cleaning time and protects precision internals from the field conditions that come with hunting, tactical training, or any serious shooting work.
The TopStop snaps securely onto most standard AR-15 and M4-type uppers when they're separated from the lower receiver—no tools needed. The tough polymer construction handles rough handling in a gun bag or on a truck bed. Its sealed design stops the bolt carrier group and charging handle from sliding out during transport or handling, which matters when you're managing multiple uppers or switching configurations mid-session. The bright yellow color makes it easy to spot in a range bag or parts bin.
This cover is built for shooters who maintain their own rifles, run multiple uppers, or need a no-fuss way to keep a spare upper protected. Whether you're a competition shooter rotating barrels, a hunter managing different setups for different game, or anyone who regularly detail-strips an AR platform rifle, the TopStop eliminates one more thing to worry about during maintenance or transport.
| Brand | Raven Concealment Systems |
| Product Name | TopStop URG Cover |
| Color | Yellow |
| Compatibility | AR-15 and M4-pattern upper receivers (detached from lower) |
| Material | Polymer |
| Installation | Snap-fit, no tools required |
The TopStop is designed to snap onto most standard AR-15 and M4-pattern upper receivers. It only works when the upper is detached from the lower receiver. If you have a non-standard or heavily modified upper, verify compatibility before purchase.
The TopStop seals your detached upper receiver to prevent dirt, dust, and debris from getting inside and fouling the bolt carrier group and charging handle. It also keeps internal parts from sliding or shifting during transport and handling.
No. The TopStop snaps on with no tools required. Simply snap it onto your detached upper and you're done.
No. The TopStop is designed only for detached upper receivers. Once you reassemble your upper to the lower receiver, you'll need to remove the cover.
SKU: 200189786 • Weight: 1.55oz

