An accurate rifle is worthless if it's not reliable and durable. TX Precision firearms are designed and built to withstand the most harsh conditions, extreme environments and are backed by a full transferable LIFETIME WARRANTY.

Upper Features:

  • Upper: TXP Gen. II Matched 7075 T-6
  • Barrel:  .223 / 5.56 NATO         1:7 Twist Rate

 14.5" - 16"  4150 CMV Cryogenically Treated w/ Melonite Finish and Nickel Boron Coated extended M4 Feed Ramp Extension, Pinned Muzzle Device

  • Handguard: BCM MCMR M-Lok
  • Gas System: Direct Impingement
  • Charging Handle: Ambidextrous
  • Bolt Carrier Group:  8620 Steel, Black Nitride, SAE 9310 Steel Bolt

                  Nickel Boron (option + $50)

  • Muzzle Device: VG6 Delta 556 *

                  SilencerCo ASR Flashider (option + $75)

                  SilencerCo ASR Brake (option + $75)

                  Surefire SOCOM Flash Hider (option + $125)

                  Surefire SOCOM MB (option + $125)

Lower Features:

  • Lower: TXP Gen. II Matched 7075 T-6 w/ upper tension screw
  • Trigger: CMC 4.5 lb Single Stage Duty/Patrol Curved *

                  CMC 4.5 lb Single Stage Duty/Patrol Flat (option +$0)

  • Safety/Fire Selector: Ambidextrous
  • Buffer Kit: JP Silent Captured Spring
  • Stock: MAGPUL CTR w/ Enhanced Buttpad *

                 MAGPUL SL w/ Enhanced Buttpad (option +$0)

                 B5 Bravo (option + $0)

                 BCM SOPMOD (option +$0)

  • Grip: MAGPUL MOE K2+ *
  • Magazine: (1) MAGPUL 30 Round PMAG®

Additional Features:

  • Rifle Case: 36" Drago Rifle Bag
  • Rifle Color: Black *

                  Desert (FDE) (option + $100)

                  Custom (option + $150)

Mk4 ESR Accuracy Guarantee

No TX Precision Mk4 ESR (Enhanced Service Rifle) firearm can leave the facility unless it obtains Sub-MOA accuracy or better at 100 yards with factory match ammo. While we guarantee the rifle is capable of sub-MOA accuracy, we can not guarantee the end-user will be able to shoot sub-MOA since we have no control over shooting proficiency, familiarity with the system, ammunition choice, environmental factors, etc


Caliber:  .223 / 5.56 NATO

Shipping to FFL Required:  YES

Made in America:  YES (Texas)

Barrel Length:  14.5"


We currently do not ship this product to the following states: California, Colorado, Connecticut, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York and Washington D.C.