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AR-15 Front Sight – Flip-Up, Fixed & Gas Block Sights In Stock
AR-15 Front Sights – Flip-Up, Fixed, and Gas Block Options for Every Build
Whether you're building a new rifle or upgrading an existing setup, a reliable AR-15 front sight is essential for consistent accuracy and backup performance. At Mounts Plus, we stock a wide range of flip-up, fixed, and gas block-mounted front sights from trusted brands like Magpul, Trijicon, Samson, and more.
Browse our collection to find the ideal front sight for your optic setup, shooting style, and platform—whether you run irons only or need a rugged backup for your red dot.
🔧 Types of AR-15 Front Sights We Carry
We offer a full range of sight styles, each tailored to specific applications:
1. Flip-Up Front Sights
- Fold down when using optics
- Quick-deploy for backup use (BUIS)
- Ideal for co-witness setups
- Available in spring-loaded or manual versions
2. Fixed Front Sights
- Always ready, no moving parts
- Trusted by military and law enforcement
- Pairs perfectly with fixed rear sights or co-witnessed optics
3. Gas Block Mounted Sights
- Mounts directly to railed gas blocks
- Ideal for rifle builds without a front sight base (FSB)
- Lower-profile design for flexibility
🛒 Popular AR-15 Front Sights in Stock
| Product | Type | Mounting Style | Price |
|---|---|---|---|
| Magpul MBUS Gen 3 Front Sight | Flip-Up | Picatinny Rail | $37.95 |
| Trijicon CP25 Night Front Sight | Fixed | Standard FSB | $53.00 |
| Samson Folding HK-Style Front Sight | Flip-Up | Picatinny | $63.45 |
| AIM Sports Flip-Up Front Sight | Flip-Up | Gas Block / Rail | $23.25 |
| Ameriglo Tritium Front Post | Fixed | Standard Post | $59.00 |
Looking for a full sight set? Check out our matching rear sights and combo kits.
🧠 How to Choose the Right Front Sight for Your AR-15
Choosing the right AR-15 front sight depends on your rifle’s configuration and your shooting preferences. Here’s a quick guide:
✔ Mounting Compatibility
- Picatinny/1913 rails – Most modern sights
- FSB (Front Sight Base) – Standard A2-style rifles
- Gas Block Rails – Ensure you select the correct height
✔ Backup or Primary Use?
- If you're running a red dot, a flip-up sight is a great backup
- If you prefer iron sights only, go with a durable fixed option
✔ Height Considerations
- Match sight height with your rear sight or receiver rail
- Avoid zeroing issues by choosing same-plane-compatible models
📦 Top Brands We Trust
- Magpul – Industry favorite for durable polymer BUIS
- Trijicon – Premium night sights for low-light use
- Samson Manufacturing – Precision CNC machined flip-ups
- Ameriglo – Tritium-powered visibility
- Dueck Defense – Offset sights for competition and tactical use
❓ Frequently Asked Questions
Q: Can I use a front sight with a red dot optic?
A: Yes. Many shooters co-witness iron sights with red dots for redundancy. Flip-up sights are perfect for this setup.
Q: Will these sights fit my AR-15?
A: All products list their mounting types (Picatinny, FSB, gas block). Match it to your rifle’s front end.
Q: What’s the best front sight for a minimalist build?
A: Look for lightweight flip-up options like the Magpul MBUS or AIM Sports folding sight.
Q: Are night sights worth it?
A: Yes, if you use your rifle for home defense or low-light shooting. Tritium front posts like Trijicon and Ameriglo offer excellent visibility without batteries.
🔍 Why Buy AR-15 Front Sights from Mounts Plus?
- Wide selection of top-rated front sights
- Compatible with all major AR-15 configurations
- Competitive pricing and fast U.S. shipping
- Backed by years of experience and top-tier customer support
We’re here to help you build a better rifle, with sights you can trust in the field or at the range.
Shop AR-15 Front Sights Today
From rugged flip-up backups to precision fixed iron sights, we’ve got the perfect AR-15 front sight for your build. Don’t settle for unreliable or poorly matched parts—buy with confidence at Mounts Plus.
👉 Browse now and elevate your rifle’s performance with a quality front sight.