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cornerstone series

premium handguards

Cornerstone AR 10 and AR15 handguards str designed to be slim and lightweight and quality made at import prices.


Single Design available in 4 standard lengths in Full Flat Top or Competition-Style. When you just need a basic rail to complete your builds.

Cornerstone Series Handguard

Our AR-chitect AR15 CORNERSTONE SERIES handguards are designed to be slim and light.

  • Cornerstone AR 10 and AR15 handguards provide an alternative to foreign sourced product. American made quality at import prices.
  • American sourced 6061 T-6 extruded aluminum.
  • Available in 7”, 10”, 13” and 15” rail lengths, in either Full Flat Top or Competition Top.
  • An overall width of 1.5 inches and a weight of only 9.5 ozs (for the 15” model) provide ultimate comfort.
  • A 1.3 inch I.D. will accommodate most low-profile gas blocks. Some interference with clamp-on style low profile gas blocks is possible.
  • MLok slots at the 3, 6 and 9 positions are manufactured to MAGPUL standards. This ensures proper fitment with any MAGPUL certified accessories.
  • Every AR10 & AR15 Cornerstone handguard comes with a pre-heat treated, 2 inch length 4140 steel barrel nut. This ensures rigid, rock-solid accessory mounting. The barrel nut has been nitrided, not phosphated.
  • Mounting instructions and hardware are included with every AR10 & AR15 handguard.
  • Available in Hard Coat Black anodized finish or in the bright.
  • Hard Coat Black anodizing is in accordance with MILA-A-8625 Type III Class II specifications.
  • 100% warranty against all manufacturing defects.

The Rogue Banshee Reviews the Bowden Tactical Cornerstone Free Float Handguard