OSA Premium Upper Parts Kit (UPK) OSA Premium Upper Parts Kit (UPK) This is our Premium Lower Parts Kit, made in the USA by Forward Controls Design. Includes: Low Snag Forward Assist (LSFA) (Dimple or Serrated) Forward Assist Roll Pin Forward Assist Spring EPC, Billet Ejection... MSRP: Was: Now: $125.00 Choose Options
OSA Basic Upper Parts Kit OSA Basic Upper Parts Kit Our basic upper parts kit made here in the USA Includes: Forward Assist - pinned cap Forward Assist Roll Pin Forward Assist Spring Ejection Port Cover Ejection Port Cover Rod Ejection Port Cover Spring C-Clip MSRP: Was: Now: $25.00 Add to Cart
OSA15 AR15 Upper receiver (Thermal Fit) OSA15 AR15 Upper receiver (Thermal Fit) Same quality as our Lower Receiver, color matched to your lower. Lugs are held to the high end of the tolerance to help promote a snug fit with the lower receiver. Machined from a 7075-T6 forging Machined... MSRP: Was: Now: $125.00 Choose Options
Sale OSA Duty BCG (OSA D-BCG) OSA Duty BCG The heart of any AR15 will always be the Bolt Carrier Group. That is why it is important to use a quality BCG in your AR15 builds. The BCG is a critical component of the AR15 rifle. It consists of several parts that are responsible for the... MSRP: Was: $285.00 Now: $250.00 Add to Cart
