Pursue Your Passion
My Cart

Discord

Menu
Account
raineirarms

Receiver Parts

View as Grid List

15 Items

per page
  3. Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 10.5"
    Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 10.5"
    $550.00
    Add to Wish List Add to Compare
  8. Sharps Bros AR-15/M4 .223 Wylde Complete Upper Receiver - 16"
    Sharps Bros AR-15/M4 .223 Wylde Complete Upper Receiver - 16"
    $799.95
    Out of stock
    Add to Wish List Add to Compare
  9. Sons of Liberty Gun Works M4-89 5.56 AR-15 Upper - 16"
    Sons of Liberty Gun Works M4-89 5.56 AR-15 Upper - 16"
    $855.00
    Out of stock
    Add to Wish List Add to Compare
  10. Angstadt Arms AR-15 5.56 Complete Upper Assembly - 16"
    Angstadt Arms AR-15 5.56 Complete Upper Assembly - 16"
    $404.00
    Out of stock
    Add to Wish List Add to Compare
  11. Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    Noveske AR-15 N4 5.56 NATO SPR Upper - 18"
    $1,543.75
    Out of stock
    Add to Wish List Add to Compare
  12. Rainier Arms RUC PRO Mk1 Riflespeed Partial Upper Receiver - 11.5"
    Rainier Arms RUC PRO Mk1 Riflespeed Partial Upper Receiver - 11.5"
    $750.00
    Out of stock
    Add to Wish List Add to Compare
  13. Rainier Arms RUC PRO Mk1 5.56 NATO Riflespeed Partial Upper Receiver - 12"
    Rainier Arms RUC PRO Mk1 5.56 NATO Riflespeed Partial Upper Receiver - 12"
    $750.00
    Out of stock
    Add to Wish List Add to Compare
  14. Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 12.5"
    Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 12.5"
    Out of stock
    Add to Wish List Add to Compare
  15. Noveske N4 Micro-Switchblock 5.56 NATO Complete Upper Reciever - 10.5"
    Noveske N4 Micro-Switchblock 5.56 NATO Complete Upper Reciever - 10.5"
    $1,496.25
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

15 Items

per page
Shop By
Now Shopping by
  1. Gas Block Diameter .750" Remove This Item
  2. Threaded Yes Remove This Item
  3. Thread Pitch 1/2x28 Remove This Item
  4. Is Firearms? No Remove This Item
  5. Caliber 5.56 NATO Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 10.5" 6 items
  2. 11.5" 2 items
  3. 12" 1 item
  4. 12.5" 2 items
  5. 13.7" 1 item
  6. 14.5" 1 item
  7. 16" 5 items
  8. 18" 1 item
Category
  1. Complete Upper Receivers 6 items
  2. Partial Upper Receivers 9 items
Color
Gas System Length
  1. Carbine 7 items
  2. Mid 5 items
Manufacturer
  1. Angstadt Arms 1 item
  2. Noveske 3 items
  3. Rainier Arms, LLC 5 items
  4. Sharps Bros 1 item
  5. Sons of Liberty Gun Works 5 items
Mount
  1. M-LOK 7 items
Platform
  1. AR-15 9 items
Price
  1. $0.00 - $999.99 12 items
  2. $1,000.00 and above 3 items
Product Type
  1. AR-15 Complete Upper Receiver 6 items
  2. AR-15 Partial Upper Receiver 8 items
  3. AR-15 Handguard 1 item
Rail Length
  1. 9.5" 1 item
  2. 9.55" 3 items
  3. 9.75" 1 item
  4. 10.7" 2 items
  5. 11.7" 2 items
  6. 13.7" 1 item
  7. 15" 6 items
Twist Rate
  1. 1:7 12 items
Stock Status
  1. In stock 7 items
  2. Out of stock 8 items
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
Google Customer Reviews Google Customer Reviews