Out of stock
Lead Star Arms Grunt 10.5" .223/5.56 AR-15 Pistol w/ 11" Grunt Handguard
Out of stock

Lead Star Arms Grunt 10.5" .223/5.56 AR-15 Pistol w/ 11" Grunt Handguard

Brand Lead Star Arms
Customers must read Compliance Information before purchasing.

Product Details


  • Chamber: 5.56 NATO
  • Barrel Length: 10.5” 
  • Barrel Material: 4150V Chrome Moly Vanadium Steel
  • Barrel Finish: Nitride
  • Barrel Profile: A2 Style
  • Twist Rate: 1 in 7”
  • Muzzle Device: Lead Star Ravage Linear Compensator
  • Muzzle Thread: 1/2x28
  • Extension: M4
  • Gas System: Mid-Length
  • Gas Block Type: Micro style .750” Diameter
  • Upper Receiver: Lead Star Grunt Forged 7075 T6 Aluminum
  • Receiver Style: M4 Flat top with feed ramps
  • Receiver Finish: Custom Finish, Teflon Coated
  • Forward Assist: Yes
  • Dust Cover: Yes
  • Handguard Style: Lead Star Grunt 11" MLOK Handguard
  • Bolt Steel: Carpenter 158
  • Bolt Carrier Steel: 8620
  • Staked Gas Key: Yes
  • Lower Receiver: Lead Star Grunt Forged 7075 T6 Aluminum
  • Receiver Finish: Custom Finish, Teflon Coated
  • Grip: Grunt Combat Grip, Black w/ Rubber Overmold
  • Fire Control Group: Lead Star Grunt Mil-Spec FCG
  • Buffer Tube: 7075 T6 Aluminum Mil-Spec Tube
  • Adjustment: 6-position collapsible
  • Brace: SB Tactical SBA3 Adjustable Pistol Brace
  • Magazine: (1) 30-Round Magazine (where available by law)


The Lead Star Arms ultralight series of duty firearms are equipped with features normally only found on higher-priced models. Engineered for best-in-class performance with our distinctive aesthetics. The Grunt AR-15 Pistol features a 10.5" barrel with a lightweight 11" handguard to give a streamlined look. Outfitted with a Lead Star Grunt Combat Grip, LSA Compensator, and a Lead Star lightweight 6-position Carbine Stock the Grunt AR-15 Rifle is everything you could want in an AR Rifle.


  • Grunt™ Upper Receiver (MIL-SPEC): CNC machined from a 7075-T6 aluminum forging for extreme precision and enhanced durability. Flat top Picatinny design for versatility in mounting optics and other enhanced components. M4 feed ramps for added reliability. 
  • Grunt™ Lower Receiver (MIL-SPEC): CNC machined from a 7075-T6 aluminum forging for extreme precision and enhanced durability. Laser engraved markings including Lead Star™ logo and multi-caliber. 
  • 11" Grunt™ Handguard: CNC machined from 6061-T6 aluminum for extreme precision and enhanced durability.  Eliminates harmonics from attached accessories greatly improving weapon accuracy. Four Picatinny slots at the 12 o'clock position for mounting back up sights. M-LOK slots at the 3 and 9 o'clock positions and full-length M-LOK at the 6 o'clock position for mounting only the Picatinny rail needed or accessories. Designed for compatibility with 10.5" barrels. 
  • Barrel: 10.5" 4150V 5.56 NATO chamber. 1:7 Twist with 1/2"-28 muzzle device threads. 
  • Gas Block: Micro-style steel with black nitride QPQ finish for lightweight and increased durability. 
  • Bolt Carrier Group: M16 profile with black nitride QPQ finish and properly staked gas key. Carpenter C-158 black nitride QPQ finish bolt for maximum dependability.  
  • Gas System: Direct impingement with carbine length gas system to reduce recoil and minimize wear on moving parts. 
  • Muzzle Device: Ravage™ Linear Comp. Greatly mitigates muzzle concussion by effectively capturing and redirecting muzzle gasses away from the shooter. Enhanced design dramatically reduces perceived decibels. Control of muzzle concussion creates an enhanced experience for shooters and bystanders. 
  • Grip: Grunt Combat™ Grip. Black with rubber over-mold for maximum comfort and weapon control in all conditions. 
  • Brace: SB Tactical SBA3 Adjustable Brace, Black 
  • Magazine: Comes standard with 1 Magpul® 30 Round MOE® PMAG® black magazine. 



Palmetto State Armory is your top supplier of Modern Sporting Rifles, Parts, Accessories, and Ammunition at the best prices around!


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All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).