Replacement QD cup insert for the Gen4. Thread these in with loctite to prevent backing out during operation.
Gen4 Steel QD Cup
Replacement QD cup insert for the Gen4. Thread these in with loctite to prevent backing out during operation.
$3.99
Frequently Purchased With
Blemish SA5 Pro AR15 Folding Stock Adapter
$175.99 Select options This product has multiple variants. The options may be chosen on the product pageThe SA5 was designed and tested with professionals and protectors in mind. Turn your AR into a compact, concealable platform with a folding stock adapter built to outlast your rifle. Made in the USA, the SA5 is lightweight and 250% stronger than our 4th gen adapter. Choose from a left folding or right folding option depending on your needs. Built to work and built to last, the SA5 is user-serviceable and easy to install.
Cosmetic Blemish: Slight scratches or slight color difference. These are not used folders.SA5P BCG Extension – Silent Capture
$25.99 Add to cartThe SA5P Bolt Extension – Silent Capture is for use with Silent Capture recoil spring assemblies.
Folding Adapter for CZ Scorpion
$99.99 Add to cartMinimize the footprint of your CZ Scorpion with our Folding Stock Adapter. Machined from high-strength B390 cast aluminum with standard 1-3/16×16 threads. Finished in anodized black for a durable, professional look.
SA5P BCG Extension – AR9 .531 ID
$22.99 Add to cartThe SA5P AR9 Bolt Extension is for BCGs with a smaller inner diameter (.531″) .
Replacement Bolt Extension for Gen4 Folding Adapter
$9.99 Add to cartThis is a replacement bolt extension that comes in the package with our Gen 4 ARH400 Folding Stock Adapters.






