Spike's Tactical complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. Spike's Tactical maintains their high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper and complete gun is test fired before leaving their facility for function check before it reaches you.
Forged Upper Receiver
- 7075 T6 Construction
- Forward Assist
- Ejection Port Door
- Ejection Port Door Spring
- Ejection Port Door Rod
16" M4 Profile Barrel
- MIL-B-11595E CMV
- Chrome Lined
- 1/7 Twist Rate
- 1/2 X 28 Thread Pitch for Muzzle
- 5.56 Nato Chamber
- .750 Gas Block Seat
- M4 Feed Ramped Barrel Extension
- Mil-Spec Phosphate Coating
9” BAR2 Rail
- 7075 T6 Barrel Nut
- 6061 T6 Rail
- Continuous Top Rail
- Free Floating 1 Piece
- Q.D. Attachment Points
Low Profile Gas Block
- Solid Billet Steel
- .750 I.D.
Carbine Gas Tube
- Black Nitride Inside and Out
- Gas Tube Roll Pin
Charging Handle
- Forged Aluminum
- Mil-Spec Type 3 Coating
Phosphate M16 Complete BCG
- Phosphate Coated
- Laser Engraved with ST Spider logo
- High Pressure Tested (HPT)
- Magnetic Particle Inspected (MPI)
A2 Flash Hider
- 1/2" Crush Washer
Weight: 4lb 3oz
- Manufacturer Part Number:
- STU5025-R9S
- Sub Category:
- Complete Uppers
- Cartridge:
- 5.56x45 Nato
- Barrel Length:
- 16"
- Gas System Length:
- Carbine
- Gas Block Diameter:
- .750″
- Handguard Style:
- Picatinny
- Handguard Length:
- 9"
- Handguard Material:
- Aluminum
- Color:
- Black
