OPERATING SYSTEM:
Gas trap/piston operation, rotating bolt (short stroke system), reversible gas piston for suppressed or non-suppressed operation.
Unlike some other "op-rod" systems, on the HOGAN gun, op-rod springs have been eliminated due to possible damage and system failure during sustained firing of the gun. The HOGAN gun system has been designed and manufactured to greatly decrease/eliminate heat, carbon build-up, gas leaks, fouling and wear/tear on operating parts which can have an adverse effect on an operating system.
Each piece of operating system is hard chrome plated and/or melonite heat treated making them almost self lubricating and act as non stick surfaces making them easy to clean and maintain.
Operates in semi-automatic, but can be made full-auto for Military and Law Enforcement.

UPPER RECEIVER:
Billet machined from 7075 aluminum forgings, (aircraft aluminum alloy), into an A3 flattop upper receiver to fit varied handrails or a 1-piece upper receiver to fit our Free Floating Monolithic rail system
Electro-less silicone Nickel on the interior
Finished in black, O.D. Green, Tan, or clear anodize, NP3™ or Cerakote™ Dark Earth or O.D. Green, (depending on customer preference or gun design).

CHARGING HANDLE:
Billet machined from 7075 aluminum bar stock, manufactured with an oversized grip and locking latch.
Black anodized to Mil-Spec 8625, duo colored with electro less Nickel coating/black anodize to Mil-Spec 9625 or NP3™ coated, (depending on customer preference or firearm design).

HEAT SINK BARREL NUT and WEDGEBLOCK:
“Patented” oversized 3.375” heat sink barrel nut design billet machined from 6061
T-6 aluminum, heat treated and black anodized to Mil-Spec 8625
Provides strength, rigidity to rail system and works as a heat sink to greatly reduce heat buildup utilizing a larger surface area and cooling fins. Comes in sizes short, long
or ribbed to meet specifications of firearm design.
Wedgeblock comes in 2 styles flat for A3 flattop upper receiver or grooved for monolithic railed receiver, billet machined from 6061 T-6 aluminum extrusion, heat treated and black anodized to Mil-Spec 8625.

HANDGUARDS/RAILS:
Aircraft aluminum alloy precision machined from 6061 T-6 extrusion Free Floating Monolithic Tactical and Hunter hand guards or Monolithic top rail finished in black, O.D. Green, Tan, or Clear anodize, NP3™ or Cerakote™ Dark Earth or O.D. Green.

PISTON and OP ROD:
Reversible gas piston for suppressed or non-suppressed operation billet machined from 4140 high temp steel round bar, heat treated to Mil-Spec, ground to size, hard chrome plated. 
Tool steel op-rod, heat treated to Mil-Spec from PCS Company.

GAS BLOCK ASSEMBLY and GAS PLUG:
Gas block: billet machined from 4140 aircraft quality steel bar stock, heat treated to Mil-Spec.
Gas tube: 4130 aircraft quality tubing. Block and tube are joined then mated with barrel (matching serial#’s added), then melonite heat treated together.
Gas plug: billet machined from 4140/4142 steel bar, heat treated to Mil-Spec, ground to size, mag phosphate on top, NP3 coated, and/or chrome plated with blackened top.

BOLT and CARRIER:
.223 bolt: machined from 9310 steel bar stock, phosphate heat treated to Mil-Spec .223 and mag particle inspected, hard chrome plated.
Carrier: billet machined from single piece of 8620 steel - integral keyed steel bolt carrier (machined as one piece to leave key in place). Heat treated per Mil-Spec, Nickel Teflon plated.

HOGAN SPECIFICATIONS:
Smaller parts like springs, screws and washers are sourced from domestic manufacturers.
Everything in a HOGAN gun is 100% made in the U.S.A. All raw materials are manufactured from U.S. steel mills.
All heat treats, plating/coatings, are completed by U.S. owned and operated manufactures.
All accessory and component parts on weapon systems are from U.S. owned and operated manufacturers.
All HOGAN weapon systems are 100% pure American made.