SPECOP 18" 5.56 MLOCK COMPLETE UPPER HALF
At SpecOp Manufacturing we believe in Quality Mil-Spec or better parts. We believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. We believe in our products and we back them up with a lifetime warranty. Our weapons our meant to be used hard and go in harm’s way, they won’t let you down.
The SPECOP 18" 5.56 MLOCK COMPLETE UPPER HALF is meant as a building block for any build you wish to do. It is built with all high quality components. At SpecOp Manufacturing we always tell our customers, Buy Quality, Buy Perfection, Buy SpecOp.
Below you will find the complete specifications on the SPECOP 18" 5.56 MLOCK COMPLETE UPPER HALF We have built our guns to run through years of hard use, and we have nothing to hide.
Barrel: SpecOp MFG 18” 4150 CoMOV
Caliber: .223 Wylde Chamber
Barrel Steel: 4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
Twist Rate: 1/8 Twist
Thread Pitch: 1/2-28 Threaded Muzzle
Gas Block: .750″ Gas Block Journal with appropriately sized gas port
Weight: 19 Ounces
Barrel Finish: Phosphate
Barrel Extension: Phosphate
High Pressure (proof) Tested (HPT)
Magnetic Particle Inspected (MPI)
Material: Made from Mil-Spec 7075-T6 aluminum Cerra Forge forgings.
Exterior Finish: Anodized to Mil-Spec MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc Seal
Interior Finish: Dry Film Lube
T-Marks: Engraved T-Marks
Gas Block: SpecOp MFG Lo-Pro Gas block made from 4140 Steel with a Phosphate Coating.
Gas Tube: Stainless Steel
SpecOp Standard A2 1/2x28 with Crush Washer
SpecOp Ultra-Light Keymod Handguard 15”
Material: Aircraft Grade 6061-T6 Aluminum
Finish: Military Specification Type III Hard Coat Anodized
Inside Diameter: 1.340"
Continuous Top Rail
Made in the USA!
Milspec Carpenter No. 158 steel bolt
Shot Peened Bolt
High pressure tested (HPT)
Mag particle inspected (MPI)
Chrome Lined Carrier (AUTO)
Chrome Lined Gas Key
Gas Key Hardened to USGI Specifications
Gas Key Grade 8 Hardened Fasteners
Gas Key Staked Per Mil-Spec
Tool Steel Extractor
Extractor O-ring Insert
Weight: 3LBS 9oz