What is the best front sight for an AR-15?

The best front sight depends on your setup. Flip-up sights are great for backup use with optics, while fixed sights offer rugged reliability. Popular choices include the Magpul MBUS, Samson fixed sights, and Trijicon night sights.

What is the difference between flip-up and fixed front sights?

Flip-up front sights can be deployed or folded down as needed, making them ideal for rifles with red dots. Fixed front sights stay upright and provide a constant point of aim without moving parts.

Can I mount a front sight to my gas block?

Yes, many AR-15 front sights are designed specifically for gas blocks. These models have a lower profile than standard rail-mounted sights and offer reliable performance when properly aligned.

Do I need a front sight if I use a red dot?

While not required, many shooters use a flip-up front sight as a backup to their red dot optic. This provides redundancy in case of optic failure and enables co-witness alignment in many setups.

AR-15 Front Sights – Flip-Up, Fixed & Gas Block Options

AR-15 Night Sights

AR15 Front Sight Gas Block

Folding Front Sights

Gas Block Height Front Sight

AR Front Sight Post

**Sight-Link - AR-15 Fiber Optic Front Sight Post** $51.00

**A.R.M.S. 40L-F Rail Mounted Flip-Up Front Sight** $170.00

**A.R.M.S. #71L Flip Up Sights (Front and Rear Set)** $144.00

**Magpul MBUS Pro - Magpul Back-Up AR-15 Sight Set - Front & Rear** $180.40

**Dueck Defense RTS Front & Rear Rapid Transition 45 Degree Iron Sights** $219.95

**PRI Flip up Front Sight with .750" gas block** $186.00

**PRI .625 Gas Block Flip Up Sight** $191.00

**A.R.M.S. #41B Silhouette Folding Front Sight** $203.00

**PRI Rail Mounted Flip Up Front Sight** $122.00

**A.R.M.S. #71L series, Front Sight** $68.00

**Trijicon AR-15 Night Sights 3 Dot Sight Set - CP25** $81.01

**Ameriglo AR-15 Night Sight (Tritium) Front Post** $59.00

**Trijicon AR-15 Green Front Night Sights - CP25F** $58.80

**Magpul MBUS Set (Front & Rear) - GEN 2 with Free MSP Silicone Gun Cloth** $88.35

**Magpul MBUS Pro Set - Magpul Back-Up AR-15 Sight Set - Front & Rear w/ Free MSP Silicone Gun Cloth** $180.40

**Magpul MBUS Pro Offset Sight Front** $85.45

**Samson Manual AR Folding Front Sight - HK Style** $63.13

**Samson Fixed AR Front Sight (HK)** $53.82

**Samson AR15 Fixed Sights - Front & Rear Package with HK Front/A2 or SP Rear** $111.58

**Samson Quick Flip Front & Rear AR Sight Package** $185.25

**Aim Sports AR-15 Front Flip-Up Sight** $23.75

**Magpul MBUS Gen 3 Sight – Front** $37.95

**Vism AR15 FlashLight w/A2 Iron Front Sight Post** $60.99

AR-15 Front Sights – Flip-Up, Fixed & Gas Block Options In Stock

Choosing the right AR-15 front sight can mean the difference between fast target acquisition and frustration on the range. Whether you prefer a rugged fixed sight, a gas block-mounted option, or a modern flip-up BUIS, we stock proven, top-rated sights for every shooter and every rifle setup.

At Mounts Plus, we carry trusted brands like Magpul, Samson, Trijicon, Ameriglo, and more – all ready to ship and field-tested for performance.

🔧 Types of AR-15 Front Sights We Offer

✅ Flip-Up Front Sights

Perfect for shooters who use optics but want a reliable backup. Flip-up sights fold down when not in use and pop up when you need them.

Spring-loaded or manual
Ideal for co-witness with red dots
Mounts to Picatinny or gas block rails

✅ Fixed Front Sights

These sights are always ready — no moving parts, just solid, consistent performance. Fixed sights are ideal for duty rifles and rugged field use.

Standard A2-style or low-profile options
Trusted by military and law enforcement
Compatible with most rear BUIS or optics

✅ Gas Block Front Sights

Designed to mount directly to railed gas blocks. These are lower in height than standard rail-mounted sights and ideal for builds without a front sight base.

Lightweight and compact
Common on custom or free-float handguards
Excellent for backup or primary aiming

🔍 Best AR-15 Front Sights in Stock

Some of our most popular models include:

Magpul MBUS Gen 3 Flip-Up Front Sight – durable, lightweight, spring-loaded
Trijicon CP25 Night Front Sight – tritium-lit for low-light visibility
Samson HK-Style Fixed Front Sight – precise and solid for co-witness setups
AIM Sports Flip-Up Gas Block Sight – budget-friendly and reliable
Ameriglo Tritium Front Post – perfect upgrade for standard A2 setups

Looking for full sight sets? We also offer front and rear combos from several top manufacturers.

🧠 How to Choose the Right Front Sight for Your AR-15

When selecting your front sight, ask yourself:

Are you running a red dot? Consider flip-up sights for co-witness or backup use.
Need a rock-solid zero? Fixed front sights offer no-fail consistency.
Have a railed gas block? Look for low-profile gas block-compatible sights.
Want night shooting capabilities? Go with tritium-lit front posts.

Our staff can help you match your front sight to your optic setup and shooting needs.

⭐ Why Buy AR-15 Front Sights from Mounts Plus?

Wide selection from leading tactical brands
Competitive pricing and fast U.S. shipping
Detailed product info to help you choose
Trusted by law enforcement, 3-gunners, and DIY builders alike

🛒 Shop AR-15 Front Sights Today

Don’t settle for unreliable or poorly matched gear. Whether you're building a rifle from scratch or upgrading an existing platform, our selection of AR-15 front sights has something for every budget and build.

Browse now and elevate your rifle's performance with dependable, purpose-built front sights – and gear up with confidence.

AR-15 Front Sights – Flip-Up, Fixed & Gas Block Options | Mounts Plus