REAL TIME INVENTORY. NO BACKORDERS. Ships within 3 - 5 Business Days!

24 of 24 Items
  • UTG® AR15 Flip-up Front Sight - ACCU-SYNC®, Black UTG® AR15 Flip-up Front Sight - ACCU-SYNC®, Black 2 UTG® AR15 Flip-up Front Sight - ACCU-SYNC®, Black 3 UTG® AR15 Flip-up Front Sight - ACCU-SYNC®, Black 4 UTG® AR15 Flip-up Front Sight - ACCU-SYNC®, Black 5

    UTG® AR15 Flip-up Front Sight - ACCU-SYNC®, Black

    The ACCU-SYNC® AR15 Flip-up Rear Sight by UTG® is designed from machined aircraft aluminum with a matte black finish. Pressing the posi-lock push button puts the spring loaded front sight into position and prevents the sight from collapsing when...

    $34.99
  • Magpul MBUS Rear Flip-Up Sight Magpul MBUS Rear Flip-Up Sight

    Magpul MBUS Rear Flip-Up Sight

    There is not better addition to any AR-15 or M16 than a MagPul AR-15 Rear Flip-Up Sight. These additional iron sights are perfect for any AR-15 or M16 with a standard picatinny rail system. Not to mention that it sights just a little over half an inch...

    $55.95
  • Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26 Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26 2 Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26 3

    Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26

    Bushnell defines the standard for red dot optics for your long gun with their TRS-26. This red dot sight has a bright, clear 3 MOA dot seen through a 1x26mm lens. It's got push-button controls instead of a dial for ease of use, and it's got a battery...

    $209.99
  • Bushnell Banner 3-9x40 Rifle Scope Bushnell Banner 3-9x40 Rifle Scope 2 Bushnell Banner 3-9x40 Rifle Scope 3 Bushnell Banner 3-9x40 Rifle Scope 4

    Bushnell® Banner® 3-9x40 Rifle Scope

    An entry-level scope with high-level performance. The Bushnell® Banner® 3-9x40: Waterproof. Fully multi-coated lenses. Argon purged and fogproof. EER (that's extended eye relief). This is one helluva scope for under a hundred bucks. Professional...

    $89.97
  • Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise 2 Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise 3

    Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise

    If you've already built a good amount of experience using good old iron sights to aim, then by now, you know about the limitations that backup irons present to a shooter. You're also probably at least somewhat aware by now of the advantages of using a...

    $139.99
  • Holosun Red Dot Reflex Sight (Solar) - X2 MRS Holosun Red Dot Reflex Sight (Solar) - X2 MRS 2 Holosun Red Dot Reflex Sight (Solar) - X2 MRS 3 Holosun Red Dot Reflex Sight (Solar) - X2 MRS 4 Holosun Red Dot Reflex Sight (Solar) - X2 MRS 5

    Holosun Red Dot Reflex Sight (Solar) - X2 MRS

    Good pistol practice dictates you should acquire a degree of comfort and skill in aiming with pistol sights before trying to rely on the fancy stuff. Now that you can aim with your pistol sights, let's bring on the fancy stuff. Check out the Holosun...

    $309.99
  • Holosun 2 MOA 20mm (Solar) Red Dot Sight -  MRS Holosun 2 MOA 20mm (Solar) Red Dot Sight -  MRS 2 Holosun 2 MOA 20mm (Solar) Red Dot Sight -  MRS 3

    Holosun 2 MOA 20mm (Solar) Red Dot Sight - MRS

    Time to upgrade your targeting ability to be quicker. Check out the Holosun HS503CU MRS (Multiple Reticle System) Red Dot Sight. It's got a solar failsafe, so you never have to worry about having a dead battery. It's got Holosun's "shake awake" feature,...

    $259.99
  • Magpul MBUS Front Flip-Up Sight Magpul MBUS Front Flip-Up Sight

    Magpul MBUS Front Flip-Up Sight

    The MagPul MBUS (MagPul Back Up Sight) Front Flip-Up Sight is a great addition to any AR-15 weapon owner’s collection. The MBUS sights come in a heavy duty durable polymer that is specially manufactured for AR-15 and M16 platforms. The sights are...

    $39.99
  • Bushnell Trophy 3-9x40mm Riflescope - Black Bushnell Trophy 3-9x40mm Riflescope - Black 2 Bushnell Trophy 3-9x40mm Riflescope - Black 3

    Bushnell Trophy 3-9x40mm Riflescope - Black

    The Trophy Scope: Some of Bushnell's best glass. The Bushnell 3-9x40 Trophy Rifle Scope is aptly named. With crystal-clear glass providing 91% light transmission, multi-coatings, and dry nitrogen purging, this compact scope packs the reticle, clarity,...

    $129.97
  • Riton 1 Conquer 6-24x50 Rifle Scope Riton 1 Conquer 6-24x50 Rifle Scope 2 Riton 1 Conquer 6-24x50 Rifle Scope 3

    Riton 1 Conquer 6-24x50 Rifle Scope

    "I mounted it on one of my rifles and was absolutely blown away by the quality of this optic. The glass is crystal clear, and parallax adjust is on point. The retical is super easy to use and precise." -- Tactical / Law Enforcement User. Conquer...

    $199.97
  • Riton 3 Primal 3-15x44 Riton 3 Primal 3-15x44 2 Riton 3 Primal 3-15x44 3

    Riton 3 Primal 3-15x44

    "Was putting hits on steel at 880 yards with a 5.56 that has a pinned and welded 16” barrel." -- USA Shooting Expert Marksman. Made and proven to out-shoot expensive glass. That's the type of performance you need in a top-shelf rifle scope. But you...

    $349.97
  • Riton 3 Conquer 6-24x50 Rifle Scope Riton 3 Conquer 6-24x50 Rifle Scope 2 Riton 3 Conquer 6-24x50 Rifle Scope 3

    Riton 3 Conquer 6-24x50 Rifle Scope

    Riton Optics is one of very few exceptional, American rifle scope companies that's ran by veterans and professional shooters. The Riton 3 Conquer is a prime example, a powerful 6-24x50mm scope packed with quality you'd expect for a much higher price...

    $409.97
  • Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PR 2 Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 3 Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 4 Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 5

    Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO

    Sig Sauer's produced some of the most reliable and accurate handguns in the world, but they've also managed to push the envelope even further by developing one of the most lightweight, compact and capable micro red dots, ever: The Romeo1 PRO Reflex Sight...

    $499.99
  • Flip-Up Mini AR-15 Front & Rear Iron Sights Flip-Up Mini AR-15 Front & Rear Iron Sights

    Flip-Up Mini AR-15 Front & Rear Iron Sights

    You can’t always reinvent the wheel, but we managed to take the M16A2’s much-loved iron sights and give ‘em one helluva set of upgrades. These flip-up mini AR-15 front and rear sights provide the same sight picture and MOA adjustments...

    $34.99
  • Sig Sauer® 2MOA 1x20mm Red Dot Sight - Romeo MSR Sig Sauer® 2MOA 1x20mm Red Dot Sight - Romeo MSR 2 Sig Sauer® 2MOA 1x20mm Red Dot Sight - Romeo MSR 3

    Sig Sauer® 2MOA 1x20mm Red Dot Sight - Romeo MSR

    Sig Sauer's one of those big names when it comes to accurate and high-quality firearms. That also holds true for their surprisingly affordable red dots, like the Romeo MSR Red Dot Sight. It's built from a tough, one-piece aluminum housing. The optic's...

    $139.99
  • Magpul MBUS Flip-Up Sights (Front & Rear) Magpul MBUS Flip-Up Sights (Front & Rear) Magpul MBUS Flip-Up Sights (Front & Rear) Magpul MBUS Flip-Up Sights (Front & Rear) Magpul MBUS Flip-Up Sights (Front & Rear)

    Magpul MBUS Flip-Up Sights (Front & Rear)

    MagPul is well known in the weapon parts manufacturing world, and they have hit a home-run with this package deal of MagPul AR-15 Front and Rear Flip-Up Sights. Both the front and rear sights, included in this package, are made from a high quality...

    $94.95
  • Riton 1 Primal 3-9x40 Rifle Scope Riton 1 Primal 3-9x40 Rifle Scope 2 Riton 1 Primal 3-9x40 Rifle Scope 3 Riton 1 Primal 3-9x40 Rifle Scope 4

    Riton 1 Primal 3-9x40 Rifle Scope

    Veteran-made performance at an entry-level price. And no shorcuts were taken here, folks. No cheap glass, no plastic bits, no missing features. The Riton 1 Primal 3-9x40mm rifle makes near to far target acquisition quick and easy. Smooth variable zoom...

    $134.97
24 of 24 Items

Top AR optics and sights from Sig Sauer, Holosun, Magpul and more.

A reflex sight and a solid pair of iron sights is what finishes off your custom AR build. Without it, your new black rifle or pistol is nothing more than a safe queen or wall hanger. We've partnered with three of the country's top optics makers - Sig, Holosun, and Magpul - to provide battle-ready backup irons and some of the highest quality reflex red dots you'll ever find.

Holosun Micro Red Dots for Rifles and Handguns

Holosun is a big name for two reasons: Quality and price. Their reflex sights sport anodized, mil-spec alloy aluminum housings with multi-coated lenses and easy MOA adjustments. Our staff, with personal experience handling Holosun optics downrange, agrees: Their optics provide some of the highest clarity, the best reticles, and the lightest and toughest units at a fraction of more expensive options from Aimpoint and EOTech. Check out their X2 MRS for your 1911 or Glock, or their MRS 2-MOA rifle red dot for your AR. Did we mention these units can run entirely on solar power?

Sig Sauer Red Dots for maximum accuracy

Sig Sauer needs no introduction. They've become a storied gunmaker whose handguns and rifles have seen service and combat for decades. Now they're broaching the red dot optics market with some truly high-quality but surprisingly affordable units. The Romeo5 is a hyper-accurate, compact reflex sight boasting no parallax error and up to 50,000 hours of battery life. Need some red dot action on your favorite Sig handgun or other piece? Check out the Romeo1 PRO, one of the smallest handgun optics on the market.

 Magpul BUIS Sights for your AR

Show up at the range with your AR's top rails sporting no back-up irons, and you might be laughed off the firing line. Trust us, you're going to want Magpul's BUIS sights, anyway: They're incredibly tough, compact, and affordable. Providing simply windage and elevation adjustments for a quick zero, they fold up and down with a flick of the wrist, locking into place without any tools.

 


DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At AR-15LowerReceivers.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.