ESG-308s

All ESG-308s are built to order and options determine final price.

ESG Lower Receiver:

  • 6061-T651 aluminum billet
  • 100% CNC machined from solid billet, making them stronger than castings
  • Many areas are reinforced and heavier over forged lowers
  • Adjustable tension screw included in lower receiver to remove “slop”

ESG Upper Receiver:

  • 6061-T651aluminum billet
  • 100% CNC machined from solid billet, making them stronger than castings
  • Many areas are reinforced and heavier over forged uppers

VLTOR charging handle:

  • Mod 1
  • Mod 2
  • Mod 3

Yankee Hill Machine low profile gas block

ESG Gunworks gas tube

Muzzle Device:

  • ESG Gunworks A2 flash hider
  • PWS FSC 30
  • Vanden Berg Custom Muzzlebrake

Buttstock:

  • Any Magpul stock
  • ESG Gunworks A2 fixed buttstock

JP Enterprises buffer spring

Midwest Industries 12″ or 15″ Key Mod/M-Lok rails

Pistol Grip:

  • ESG Gunworks
  • Umbrella Corp
  • Magpul MIAD, MOE, MOE-K, MOE-SL, MOE-K2

KAK Industries BCG:

  • Double Ejectors
  • MPI tested and marked
  • Nitride finish inside and out
  • Forward assist cuts
  • 9310 bolt head
  • 8620 carrier
  • Includes O-ring extractor helper to run under extreme conditions

Barrels:

  • ESG Gunworks Match Grade made from Shilen blanks (ESG Match Grade may be had in the following calibers:  7.62×51/.308 Win, .243 Win, .260 Rem, 7mm-08, .338 Federal, 6.5 Creedmore, )
  • ESG Gunworks Standard
  • Rainier Arms Match Grade
  • Noveske

ESG Gunworks Lower Parts Kit (LPK):

  • Pivot/takedown pins machined from hardened steel and black oxide finish by KNS
  • Buffer detent machined from steel and black oxide finished by KNS
  • Safety detent machined from stainless steel then hardened by KNS
  • Pivot/takedown detents are machined from stainless steel then hardened by KNS
  • Bolt catch detent is machined from steel and black oxide finish by KNS
  • Fire control group (hammer, hammer spring, hammer/trigger pin, trigger, trigger spring, disconnector) are ALG Defense Mil-Spec triggers.

(ALG Mil-Spec triggers have a better finish than that which passes for a stock mil-spec trigger resulting in a smoother pull. ALG Defense MS triggers and hammers are made from true 8620 alloy steel military spec castings, correctly carburized, quenched and tempered for high surface hardness. Disconnector is 1070 high carbon steel properly Austempered into the spring range of hardness. Full for hammer springs are used, and trigger and hammer pins are 4140 chrome-moly steel that is quenched and tempered, and centerless ground to a fine finish to retain a slip fit into the receiver.)

Geissele Triggers/CMC Triggers available