Diamondback Firearms 16 Inch Midlength AR-15 Barrel – 5.56 NATO – 4150 CMV QPQ – (DISCONTINUED)

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.

Limited Lifetime Warranty

• This “Limited Lifetime Warranty” has been drafted to comply with the MAGNUSON-MOSS WARRANTY FEDERAL TRADE COMMISSION IMPROVEMENT ACT which is effective for goods manufactured on or after December 31, 1976. DIAMONDBACK FIREARMS, LLC. warrants that this firearm was originally manufactured free from defects in material and workmanship.
• DIAMONDBACK FIREARMS, LLC. agrees to correct any defect in material and/or workmanship for the original purchaser by repair or replacement ONLY. PROOF OF PURCHASE IS REQUIRED. A service or handling charge may be applied at the company’s discretion.
• DIAMONDBACK FIREARMS, LLC. will not be responsible for defects resulting from careless handling, unauthorized adjustments or modifications, corrosion, neglect, abuse, failure to provide reasonable and necessary maintenance as described by this owners manual.
• Damage caused by hand loaded and/or reloaded or improper ammunition or damage caused by firing with any obstruction in the barrel will not be warranted.
• This warranty does not apply to ordinary wear and tear of any parts, including metal, plastic, or any other material used to manufacture this product, as well as all surface finishes.
• Diamondback does not warranty aftermarket parts or damage or issues caused by them.
• Under no circumstances shall DIAMONDBACK FIREARMS, LLC. be responsible for incidental or consequential damages with respect to economic loss or injury or property damage, whether as a result of a breach of an express or implied warranty, negligence or otherwise.
• Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply in certain cases.

Illegal Configuration

Diamondback reserves the right to report illegal configurations to the ATF for guidance. Please ensure all NFA parts or modifications have the proper paperwork associated with them prior to shipment. This includes short barrel rifle configurations.

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