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

Q: What’s the difference between a gas block front sight and a rail-mounted front sight?

Gas block front sights mount directly to railed gas blocks and sit lower, while rail-mounted front sights align with Picatinny rails.

Q: Should I choose a polymer or steel AR-15 front sight?

Polymer sights are lightweight and affordable, while steel or aluminum options provide maximum durability for heavy use.

Q: Are tritium AR-15 front sights worth it?

Yes. Tritium AR-15 front sights provide a glowing aiming point in low-light conditions without batteries, making them ideal for defense or duty rifles.

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** $69.32

**Samson Fixed AR Front Sight (HK)** $59.10

**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

When accuracy matters, a reliable AR-15 front sight is essential. Whether you need a rugged fixed sight, a flip-up option to pair with a red dot, or a gas block-mounted sight for your build, Mounts Plus has you covered. We carry a wide range of front sights for AR-15 rifles, from budget-friendly polymer models to premium steel and tritium options trusted by professionals.

Why Upgrade Your AR-15 Front Sight?

Accuracy & Consistency: A quality front sight gives you a precise point of aim every time.
Backup Reliability: Even if your optic fails, iron sights keep you on target.
Versatility: Choose from flip-up, fixed, or gas block front sights for your specific setup.
Durability: Built from steel, aluminum, or reinforced polymer to handle recoil and field use.
Optic Compatibility: Perfect for co-witness with AR-15 red dots and LPVOs.

Types of AR-15 Front Sights

Flip-Up Front Sights

Fold down when not in use, deploy instantly when needed. Ideal for rifles with optics where low profile and quick backup are critical.

Fixed Front Sights

Always ready, no moving parts, just rugged dependability. Fixed front sights are trusted for duty and defense builds.

Gas Block Front Sights

Designed for railed gas blocks, these sights sit lower than rail-mounted options and are a great choice for rifles without a front sight base.

Tritium Front Sights

Perfect for low-light conditions, tritium AR-15 front sights glow without batteries, ensuring visibility in darkness.

Top Brands for AR-15 Front Sights

We stock front sights from leading names like:

Magpul MBUS & MBUS Pro
TROY Industries BattleSights
Trijicon Night Sights
Samson Manufacturing
Ameriglo & PRI

From classic A2-style posts to modern low-profile flip-ups, you’ll find the right front sight for your AR build here.

How to Choose the Best AR-15 Front Sight

Purpose: Defense rifles benefit from fixed or tritium sights, while competition builds often use flip-up or offset options.
Material: Polymer sights are lightweight and affordable; steel or aluminum options offer maximum strength.
Optic Setup: For red dot users, co-witness front sights are the best choice. For scoped builds, consider low-profile or offset designs.
Budget vs Premium: Magpul MBUS delivers excellent value, while TROY and Trijicon sights provide military-grade reliability.

✅ Frequently Asked Questions (FAQ)

Q: What is the best AR-15 front sight for accuracy?
A: Fixed steel front sights provide the most consistent point of aim, though flip-up sights are excellent if you run optics.

Q: Do AR-15 front sights work with red dot optics?
A: Yes. Many shooters use co-witness front sights with red dots for maximum reliability.

Q: What’s the difference between a gas block front sight and a rail-mounted front sight?
A: Gas block sights sit lower and mount directly to railed gas blocks, while rail-mounted sights align with standard Picatinny rails.

Q: Should I choose a polymer or steel AR-15 front sight?
A: Polymer is lighter and more affordable, while steel offers greater durability for heavy-duty use.

Q: Are tritium AR-15 front sights worth it?
A: Yes. Tritium front sights provide a glowing aiming point in low light, making them ideal for defense and duty rifles.

🔗 Shop AR-15 Front Sights at Mounts Plus

At Mounts Plus, we make it easy to find the best AR-15 front sights for your build. With flip-up, fixed, gas block, and tritium options from trusted brands, you’ll get the precision and reliability your rifle deserves. Shop now and upgrade your AR with a front sight you can count on.