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Your Price: $790.20
Retail Price:$878.00
You Save:$87.80(10%)
Part Number: UP-SPK-001
Availability: Back Order.
Fully Mil-spec compliant and originally designed as an upper series for law enforcement, Spikes Tactical uppers are now available to everyone at a price that is affordable to shooters of any budget. Chambered in 5.56x45 NATO and featuring a carbine-length gas system and 1:7 twist M4 profile barrel, this is a great choice for a quality carbine build.

Features and Specifications:
Manufacturer Number: STU5035-S2S
5.56mm Nato chamber (accepts .223 Remington
CNC Machined from a 7075 T6 MIL-H-6088 Forging
Extended M4 Feed Ramps Machined before Plating
Mil-Spec 1913 Picatinny Rail
MIL-A-8625F Type III Class 2 Hardcoat Anodized Finish
Laser Engraved T-markings
Laser Engraved ST Spider logo
Interior MIL-L-46010 Dryfilm Lube
Mil-Spec Ejection Port Door Assembly with MIL-STD-171 Phosphate Finish
Mil-Spec Forward Assist Assembly with Tool Steel Pawl and MIL- STD-171 Phosphate Coating
Forged Mil-Spec Charging Handle with MIL-A-8625F Type III Class 2 Hardcoat Anodized Finish
Barrel Steel is Certified MIL-B-11595E Chromoly Vanadium Alloy
Raw Barrel Steel is Magnetic Particle Inspected
Barrels are Stress Relieved
Mil-Spec M4 Barrel Extension with MIL-STD-171 Phosphate Finish MIL-STD-171 Hard Chrome Chamber MIL-STD-171 Hard Chrome Bore
All Chambers are Individually Checked for Head Spacing Before and After Plating
All Barrels are Individually High Pressure Tested (HPT) and then Individually Magnetic Particle Inspected (MPI) MIL-STD-171 Phosphate Finish on the Barrel Exterior, Including under the Front Sight Base
1/2x28 Thread Pitch
Threads are Cut Concentric to the Bore
Gas Block or FSB is Pinn ed to the Barrel and Vertically Aligned
Rubber Coated Front Sling Loop
Mil-Spec 303 Stainless Steel Gas Tube enhanced with Melonite Finish
Muzzle Devices are Properly Timed and installed with Crush Washer
Spike's Tactical SAR3 Rail System
CNC Machined from 6061 Extrusion with MIL-A-8625F Type III Class 2 Hardcoat Anodized Finish
Titanium ST SAR Barrel Nut
Welded friction lock mounting system and anti-rotation tabs
Featuring 4 QD Swivel Sockets for multi-fuction sling attachment
Slim Body design for low profile and overall width of weapon
Mil-Spec 8620 Tool Steel M16 Bolt Carrier with Shrouded Firing Pin
Carrier is MIL-STD-171 Phosphate Coated inside and out with MIL-STD-171 Hard Chrome Bore
Mil-Spec Tool Steel Carrier Key
Carrier Key is MIL-STD-171 Phosphate Coated inside and out with MIL-STD-171 Hard Chrome Bore
Carrier Key is installed with Grade 8 Hardware and Properly Staked
Bolt is CNC Machined from Carpenter-158 Steel
Bolt is MIL-STD-171 Phosphate Coated inside and out
All Bolts are Shot Peened and High Pressure Tested per current Mil-Spec Requirements
Mfg# STU5035-S2S

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