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Quarter Circle 10 AR-15 Handguard 6.44"

Quarter Circle 10 AR-15 Handguard 6.44"
Only 4 left

Availability: In stock




Quarter Circle 10 is proud to offer our compact handguard system, designed from the beginning to be the perfect pairing for our pistol caliber barrels and any other short-barreled AR platform weapons.

Designed and manufactured in-house by QC10’s design and engineering team, this is the premium-quality handguard and attachment system for the accessories and tools you want on your firearm. Our lightweight, free float design makes the most of the short barreled weapon you’ve chosen.

The QC10 handguard is made to end just short of the shoulder of the barrel threading (see chart below for specific lengths.) CNC machined from 6061 aluminum, our system is available with the VLTOR KeyModTM attachment system on 7 faces, and a MIL-SPEC 1913 Picatinny rail at the 12 o’clock position. This handguard is the perfect way to finish any pistol caliber build.

Our handguard features:

  • Free Float Design
  • 6061-T6 Aluminum
  • Type III Hard Coat Black Anodizing
  • Continuous 12 O’clock Picatinny Rail
  • Compatible with low profile gas blocks
  • Utilizes a Standard G.I. Barrel Nut (Included)
  • 2 QD Sling Swivel Sockets
  • 1.575″ Inner diameter allows many suppressors and muzzle devices to be “tucked” into the rail
  • 1.700” Wide
  • 2.6” Tall
  • 5.5” Handguard assembly weighs 4.7 oz. complete
  • 7.5” Handguard assembly weighs 6.3 oz. complete

What’s included:

1 Handguard

1 Handguard Collar

1 Barrel Nut

2 Low Head Cap Screws

8 Button Head Cap Screws


Tools Needed to Assemble:

Standard Barrel Nut Wrench

Standard Imperial Allen Keys

Upper Receiver Vise Block


Due to the Handguard fitting over the Upper Receiver this product is not compatible with side-charging upper receivers from American Spirit Arms, Gibbz Arms, Matrix Arms, and others.




Additional Info

Additional Info

SKU qc10-hnd-grd-6.44
Manufacturer Quarter Circle 10
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No



Feel free to ask us any question regarding this product.

At Rainier Arms you can find the best AR15 Forearm Systems/ Handguards. The Quarter Circle 10 AR-15 Handguard 6.44" can be purchased for $180.50. Go to to buy your Quarter Circle 10 AR-15 Handguard 6.44" now.