Magpul MBUS Gen 3 Rear Sight
The next evolution in our MBUS (Magpul Back-Up Sight) line, the MBUS 3 incorporates the best features, strengths and value of our original MBUS and MBUS Pro Sights in a feature-packed back-up sight system.
Significantly reduced in size from the MBUS, it sits at just 0.55” high when folded, 1.38” at its widest point, and weighs a scant 30 grams with hardware. Its aesthetics are derived from the MBUS Pro, but the MBUS 3 Rear Sight is constructed of our impact-resistant polymer, making it lightweight and extremely durable. Featuring the same spring-loaded technology as its predecessor, they can be deployed with an ambidextrous push-button.
The MBUS 3 Rear Sight sits at standard AR-height when deployed and includes a windage adjustable, rapid-select aperture system.
- Injection Molded Polymer
- Folding Back-up Sight
- Adjustable Elevation
- Fits most 1913 Picatinny-railed hand guards
- specifically tailored to the AR15/M16 platform
- Made in the USA
Gun Laws & Restrictions
Ammunition, Magazines and other items are restricted in various jurisdictions throughout the United States. Please know the laws in your local jurisdiction. Dark Storm Industries will work with you to accommodate any legal purchase in these areas. Below are a few examples. Please contact us with any questions.
New York City - Ammunition order up to 200 rounds only. The buyer must provide a copy of their NYC Rifle / Pistol Permit before the order can ship. The easiest way to do this is simply photograph it with your Smart Phone and email it to firstname.lastname@example.org with your order number.
New York State - Ammunition may be ordered online BUT only for in-store pickup. Effective 30 days from when the NYSP puts their background check system online, you will need to provide any required information (TBD) and pass the background check to complete the transaction. If you are purchasing ammunition for a pistol you will need to show your NYS pistol permit.
Connecticut - For ammunition orders, the buyer must email a copy of their Connecticut pistol permit, eligibility certificate, long gun eligibility certificate or an ammunition certificate along with a valid form of identification in order to purchase ammunition. The easiest way to do this is simply photograph it with your Smart Phone and email it to email@example.com with your order number.
Stun Guns and Tasers
New York State - no sales to residents of New York City. All other counties are ok for retail or shipment.
Rifles & Magazines
Law Enforcement - If you are attempting to purchase a firearm or magazine in a jurisdiction where they are restricted to Law Enforcement Only, you will need to provide a copy of your law enforcement ID card before we can ship and if stated below, a letter authorizing the purchase for duty use on agency letterhead.
Below is a compilation of publicly available information to assist you in your purchases. The information contained herein should not be considered legal advise or any guarantee of legality. Customers should contact local law enforcement for clarification.
Returns and Defective Product
Your satisfaction is important to Dark Storm Industries. If you need to return a product, we will make every reasonable effort to satisfy you.
- Proof of purchase is required for all returns. This is your printed register receipt for in store purchases or order # for online sales linked to your account.
- Returns or exchanges must be processed within 30 days of purchase. All returns or exchanges must be in new, unused, sale-able condition unless it is defective.
- There are no returns or exchanges on firearms, ammunition, body armor, stun guns, tasers, pepper spray, discontinued, or clearance items.
- Training may be rescheduled without any additional fees, but it non-cancellable / non-refundable
- A 20% restocking fee will apply to all order cancellations or changes. This includes delayed NICS transactions that are requested to be cancelled.
- A $50.00 fee will be assessed on all NICS Deny Refunds.
- Items with prices ending in "XX.77" are discontinued and/or clearance items
- If you transfer in a firearm that is not compliant or you are unable to possess, the firearm will be shipped back at your expense. By attempting to transfer non-compliant guns, you will also forfeit your transfer fee.
- If you order a firearm that is NOT legal in your location, a 20% restocking fee will be assessed upon the order being refunded.
- Gift Cards must be treated as cash as they cannot be replaced if lost or stolen. Gift Cards cannot be redeemed for cash. Gift cards do not expire or charge fees.
- Lead times on firearms are estimations and are subject to change. Due to ongoing supply chain issues which were caused by the global pandemic, we cannot guarantee any specific timeframe. We do our absolute best to accurately estimate said lead times.
Please contact our customer service department via email at firstname.lastname@example.org or phone at 800-963-7700 to obtain an RMA # prior to shipping your item back to us.