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 Wylde         1:8 Twist Rate     

                  16" Proof Research Carbon Fiber, Intermediate Length

  • Handguard: TXP 15" Gen. II Mk4 M-lok
  • Gas System: Direct Impingement
  • Charging Handle: Ambidextrous
  • Bolt Carrier Group:  8620 Steel, Nickel Boron Finish, SAE 9310 Steel Bolt 
  • Muzzle Device: JEC .223 Muzzle Brake *

                  SilencerCo ASR Muzzle Brake (option + $0)

                  Surefire MB SOCOM (option + $50)

Lower Features:

  • Lower: TXP Gen. II Matched 7075 T-6 w/ upper tension screw
  • Trigger: CMC 2lb Two Stage Curved *

                  CMC 2lb Two Stage Flat (option + $0)

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

                  MAGPUL PRS Gen 3 (option + $50)

                  XLR Industries Tactical AR (Option + $50)

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

Additional Features:

  • Rifle Case: 42" Drago Rifle Bag
  • Rifle Color: Black *

                  Desert Warfare (option + $100)

                  Jungle Warfare (option + $100)

Mk4 SAPR Accuracy Guarantee

No TX Precision Mk4 (Semi-Auto Precision Rifle) can leave the facility unless it obtains an accuracy of Sub-MOA 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. It is however extremely common for proficient shooters to consistently achieve 1/2 MOA or better results with our Mk4 SAPR.


Caliber:  .223 / 5.56 NATO

Shipping to FFL Required:  YES

Made in America:  YES (Texas)

Barrel Length:  16"


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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.