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Best AR-15 Accessories – Tactical Parts for Every Build

Looking for the best AR-15 accessories to take your rifle build to the next level? Whether you’re upgrading for home defense, competition, or the range, the right AR-15 parts can dramatically improve accuracy, ergonomics, and control. This guide features top-rated AR-15 accessories handpicked for performance, reliability, and compatibility.

Top AR-15 Accessories for 2025

AR-15 Triggers & Internals

Upgrade your trigger for a cleaner, crisper break. Whether you're going with a single-stage or two-stage, enhanced AR-15 triggers reduce pull weight and improve follow-up shots.

• Drop-in triggers
• Enhanced bolt carrier groups
• Anti-rotation pins

Stocks & Grips for AR-15

Stability matters. A quality stock improves recoil management, while ergonomic grips help with control and comfort during long shooting sessions.

• Adjustable or minimalist stocks
• Overmolded pistol grips
• Ambidextrous design

AR-15 Optics & Mounts

From red dots to LPVOs (low power variable optics), no rifle is complete without a sighting system.

• Red dot sights with co-witness mounts
• Scope mounts (1” and 30mm)
• Backup iron sights (BUIS)

Handguards & Rail Systems

Upgrade to modular rails that let you mount lights, slings, and foregrips where needed — without extra weight.

• M-LOK handguards
• Picatinny quad rails
• KeyMod systems

Lights, Lasers & Sling Mounts

Small details like a tactical light or sling adapter make a huge difference in real-world use.

• Weapon lights (500+ lumens)
• Laser aiming devices
• Quick-detach (QD) sling mounts

How to Choose AR-15 Accessories

Before buying, consider these tips:

• Purpose: Tactical, defense, hunting, or competition?
• Weight: Lighter gear = better mobility
• Compatibility: M-LOK vs. Picatinny? Mil-spec or commercial?

We’ve organized our catalog to help you build smarter. Whether you're starting from scratch or upgrading, our experts are here to support you.

Why Buy AR-15 Accessories from Mounts Plus?

• ✅ In-stock items ship fast
• ✅ Trusted by shooters for 20+ years
• ✅ Expert support before & after the sale
• ✅ Top brands like Magpul, Trijicon, Vortex & more

Frequently Asked Questions (FAQ)

What are the most important AR-15 accessories?

Start with a good trigger, a solid optic, and a quality handguard. Then add a sling, light, and upgraded grip.

Are your AR-15 accessories mil-spec?

Yes, most of our parts meet or exceed mil-spec standards. Check each product description for fitment info.

Do you offer bundles or build kits?

Absolutely. Check out our AR-15 build kits section for ready-to-go solutions.

Shop AR-15 Accessories Now

Browse top categories:

• Triggers & Internals
• Stocks & Grips
• Optics & Mounts
• Rail Systems
• Lights, Slings & More