Luth-AR Triangular Handguard Cap for AR-15

AR-15 Triangular Handguard Cap

The Luth-AR Triangular Handguard Cap comes in .750″ and .625″ diameter to fit your AR-15 barrel. This handguard cap works great for rifle length builds, as well as retro builds. If you’re going with a retro build and a pencil profile barrel to get as close to the M16A1 as possible, be sure to select the .625″ version. This stamped steel endcap works for a wide variety of rifles and drop-in handguards, and it’s made in the USA by Luth-AR.

How Do I Install This Cap?

Handguard caps of any type won’t drop in easily on an already built rifle. If your AR-15 has an A1 or A2 style front sight base, you’ll need to remove the taper pins of the front sight base, along with the muzzle device to install this part. You’ll need a front sight bench block, as well as a good set of punches at minimum.

Which Size Fits My Barrel?

This depends on what diameter barrel you own or plan to purchase. A1 “Pencil” barrels are .625″ as most barrels on the market are .750″. We recommend referencing to the manufacturer specifications to get the best answer on what diameter your barrel is.

Specifications

• Fit: AR-15
• Material: Steel
• Finish: Phosphate
• Weight: 0.3 oz
• Made in USA

Products available on this page:

• Luth-AR Triangular Handguard Cap for AR-15 - Gas Block Size: .625" Gas Block  |  SKU: BL-19A-625
• Luth-AR Triangular Handguard Cap for AR-15 - Gas Block Size: .750" Gas Block  |  SKU: BL-19A-750

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Luth-AR Limited Warranty

• Luth-AR, LLC manufactured products are warranted for 1 (one) year from the date of purchase against manufacturing defects in material and/or workmanship. All parts and labor or replacement, at our option, are covered.
• Government fees, damage caused by failure to perform normal maintenance, sales outside the United States, damage due to high velocity, high pressure, reloaded, or other non-standard ammunition, or any unauthorized repair, modification, misuse, abuse, or alteration of the product is not covered by this limited warranty.
• Consumable items such as gas rings, O’ rings, etc., are not warranted.
• Luth-AR, LLC complete assembled uppers will be warranted for a period of 1 (one) year after the complete upper was purchased.
• The warranty applies towards defects in materials or workmanship of the complete upper. Luth-AR will pay for all warranty repairs, at no charge to the consumer. Please supply a copy of the invoice for proof of purchase.
• The use of re-load ammunition, proof rounds, or factory ammunition that exceeds initial SAAMI specifications voids any warranty. Any repairs or modifications not done by Luth-AR also voids any warranty.
• Complete uppers not assembled or built by Luth-AR are not covered by the 1 (one) year warranty.
• Please call our warranty department at (763) 263-0166 or email info@luth-ar.com for any warranty issues.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.