#ar15setup

Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened

HP proof testing, 100% using a high pressure M197 or SAAMI commercial equivalent, without evidence of failure

MPI testing after above, 100% inspection per ASTM E1444 using a standard 5 turn magnetizing coil with a current of 200 to 300 amperes. Circular and longitudinal continuous magnetization and a wet fluorescent solution shall be used. Conformance to MIL-STD-410 is required within ASTM E1444

ultrasonically cleaned and Nickel Boron coating

Markings laser engraved (HPT=High Pressure Tested, MPI=Magnetic Particle Inspection)

Extractor, machined 4140 Tool steel alloy, hardened with Nickel Boron coating

Extractor Pin, precision machined and ground AMS6440/52100 Bearing grade steel retaining pin

Extractor Spring, 5 coil, ASTM Grade A 228 wire stock, stress relieved, Tensile Strength of 393,000 PSI Max, 80 Durometer Per AMS-R-6855 black insert

Extractor Spring O-Ring, Viton (FKM) Fluoropolymer Elastomer

Ejector, S7 shock resistant tool steel alloy, hardened, shot peened per ASTM B851/SAE AMS2430, manganese phosphate

Ejector Spring, ASTM Grade A 228 wire stock, heat treated, stress relieved – Tensile Strength of 376,000 PSI Minimum

Gas Rings, Steel Corrosion Resistant Per AMS 5906 – X3

Quality-made, original-style, chrome pin. Perfect for replacement of worn or damaged pins; great for building new rifles. Small collar fits all carriers.

Firing Pin, precision machined 8740 steel alloy

Heat treated

Precision ground

Hard chrome plate

Barrel extensions play a central part in the construction of an AR-15 barrel.  Fully machined from high-grade aerospace quality steel allow, these components are designed for precise fit, maximum strength, and consistent durability.

Extension machined from 8620 per AMS 6274 aerospace quality steel alloy

Heat treated – carburized

CNC threaded and hard turned to precision

E2 Armory specializes in high-quality, mil-spec components made from hardened, heat treated materials. Crucial in the process of reduces friction co-efficients, these phosphate components make the surface of your part nearly completely impervious to wear.

Extractor, machined 4140 Tool steel alloy

Heat Treated

Manganese phosphate

Your gas key is the central component in accepting gas from your gas tube and funneling it into the bolt carrier. A high-quality, heat treated part, gas keys need to operate under pressure for long periods of time. At E2 Armory, our gas products are top of the line.

Gas Key machined from 4130 chromoly steel alloy

Heat treated

Hard chrome internal & manganese phosphate

AR-15 Charging Handle

Precision machined from Aerospace 7075 Aluminum Alloy, T6 Temper

Certified MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc Seal

Compatible with all Standard Upper Receivers

Kaiser chemical composition certifications for the 7075 Aluminum

Inert media blast for uniform finish

Latch, 7075 T6 material, anodize coated

Spring, stainless steel Type 631 (17-7PH) cold drawn wire, Spec ASTM-A313

Your gas key is the central component in accepting gas from your gas tube and funneling it into the bolt carrier. A high-quality, heat treated part, gas keys need to operate under pressure for long periods of time. At E2 Armory, our gas products are top of the line.

Gas Key machined from 4130 chromoly steel alloy

Heat treated

Nitrided

Your gas key is the central component in accepting gas from your gas tube and funneling it into the bolt carrier. A high-quality, heat treated part, gas keys need to operate under pressure for long periods of time. At E2 Armory, our gas products are top of the line.

Gas Key machined from 4130 chromoly steel alloy

Heat treated

Nickel Boron coating