Everything you need for your AR-15 on one page. This list is regularly updated, check often.

AR-15 Lower Receiver Parts Kit: Your Key to Easy Rebuilds

AR-15 Parts

💡 Why Choose It? Reliable Spare Parts!

An AR-15 Lower Receiver Parts Kit is a must-have for anyone looking to maintain, repair, or rebuild their AR-15. It’s affordable, user-friendly, and even beginners can use it with ease. Here’s why this kit stands out:

Quick Repairs

• Everything You Need: The kit includes all essential parts, each clearly identifiable.

• Know Your Kit: There are different versions of this kit, each with minor differences.

• Avoid Confusion: Double-check which version you’re ordering to make sure it matches your needs.

• Pro Tip: Label your kit or keep the packaging to remember which version you have.

Pro Tip: Keep the exploded parts list for future reference—it’s a lifesaver for identifying components.

Stay Organized – Avoid Common Mistakes

• One Session Repair: Complete the rebuild in a single work session to prevent losing parts.

• Keep Your Place: If you need to take a break, use a small tray to store the disassembled parts safely.

• Pro Tip: Use a magnetic parts tray to keep tiny pieces from getting lost.

Versatile for Any Setup

• Home Defense: Keep your AR-15 ready and reliable.

• Competition: Fine-tune your weapon for peak performance.

• Tactical Use: Customize your AR-15 for tactical missions.

• Target Practice: Enjoy smooth, accurate shooting.

✅AR-15 Parts Kits on Brownells. Click here!

🔝 Top AR-15 Handguards

Swapping out your factory AR-15 forend for an aftermarket handguard is one of the smartest upgrades you can make – and here’s why:

Improved Accuracy – Most aftermarket handguards use a free-float design, meaning they don’t touch the barrel. This reduces unwanted pressure and vibration during shooting, leading to tighter groups and better precision.

Lighter and Stronger – Modern handguards are made from aerospace-grade aluminum or other lightweight materials, reducing front-end weight while still being tough as nails. Perfect for long sessions at the range or in the field.

Custom Accessory Mounting – Whether you prefer M-LOK, Picatinny, or KeyMod, aftermarket rails give you total freedom to mount what you need—lights, lasers, grips, bipods, and more—right where you want them.

Better Heat Management – Upgraded handguards often feature vented or skeletonized designs, allowing better airflow to keep your barrel cooler during rapid fire or extended shooting.

Tactical or Custom Look – Want to build a sleek, minimalist rifle? Or maybe a full tactical beast? 🕶️ Aftermarket forends come in multiple lengths, colors, and styles to match your vision—and show off your build.

Midwest Industries Combat M-LOK Free Float Handguard

The Midwest Industries Combat M-LOK Free Float Handguard is designed for shooters who demand performance, reliability, and endless customization options—all in one sleek, rock-solid package. Whether you’re building your dream rifle or upgrading a factory setup, this handguard gives you serious advantages right out of the box.

What’s in It for You:

Better Accuracy – Thanks to its fully free-floated design, this handguard won’t interfere with your barrel, helping you shoot tighter groups and stay on target, whether at the range or in competition. 🎯

Maximum Customization – With 7 full rows of M-LOK slots and a continuous top Picatinny rail, you’ve got real estate for anything: lights, lasers, grips, bipods, or optics. Make your rifle truly yours. 🛠️

Built Like a Tank, Feels Like a Feather – Machined 100% from aircraft-grade aluminum, it gives you strength without weighing you down. Perfect for tactical builds or lightweight hunting rigs.

Rock-Solid Sling Mounting – Includes two QD sling sockets with anti-rotation features, so your sling stays put when it matters most. 🧷

All-American Quality – Proudly made in the USA, this rail comes with a heat-treated barrel nut and an installation wrench—so you’re ready to install and hit the range.

Need to Know Before You Buy:

• ❌ Not compatible with gas-piston ARs

• ❌ May not fit all billet upper receivers

✅Get it on Brownells

Bravo Company’s BCM MCMR M-LOK® Handguard

The BCM MCMR M-LOK® Compatible Modular Rail is exactly what your rifle deserves. It’s designed for shooters who want battle-tested durability, ultra-slim handling, and the flexibility to mount everything—without the bulk.

What’s In It For You:

Tons of Mounting Space – You get a full-length top Picatinny rail (T-marked for precision) and 7 rows of M-LOK® slots. That means lights, optics, lasers, grips—mount it all, your way.

No-Snag Design = Smooth Handling – The MCMR is fully dehorned (no sharp edges) so it won’t cut your hand or catch on gear during transitions. Ideal for fast-paced movement and tactical use.

Better Accuracy Built In – This handguard is completely free-floating, so your barrel stays untouched by the rail or accessories. The result? Consistent, improved accuracy with every shot.

Strong but Light – Precision-machined from 6061 T6 aluminum, it hits the perfect balance of lightweight control and rugged strength. Then it’s hardcoat anodized to stand up to abuse, corrosion, and harsh conditions.

Drop-In Upgrade, Built to Last – Includes BCM’s proprietary steel barrel nut and step-by-step instructions. Trusted by pros, field-tested by those who count on their rifle every day. 🛡️

Smart Design Benefits:

• 🔸 Based on the proven BCM KMR, now adapted for the ultra-versatile M-LOK® system by Magpul.

• 🔸 Available in multiple lengths to fit any AR-15 build style—from compact CQB rigs to long-range setups.

• 🔸 Clean, minimal design keeps your rifle sleek, snag-free, and easy to maneuver.

✅Get it on Brownells

🔝 Top Aftermarket AR-15 Flash Eliminators

Swapping out your stock flash hider for a high-performance aftermarket AR-15 flash hider isn’t just about looks—it’s about real benefits that matter every time you pull the trigger. Here’s why smart shooters make the upgrade:

1. Reduce Muzzle Flash = Protect Your Vision

Every shot creates a burst of light—especially in low light. A quality flash hider minimizes that visible flash, so you don’t lose your night vision or give away your position. That means faster, clearer follow-up shots.

2. Stay Stealthy & Tactical

Whether you’re training, hunting, or shooting competitively, a good flash hider helps conceal your location from both game and opponents. For defensive or duty builds, it’s a must-have.

3. Built Tougher Than Mil-Spec

Aftermarket flash hiders are typically made from heat-treated steel with corrosion-resistant finishes. Many last longer and perform better than standard A2 birdcages. They’re built to handle thousands of rounds.

4. Improved Accuracy with Suppressor Compatibility

Many high-end flash hiders are designed to work with suppressors, acting as direct mounts. That means fewer parts, a better fit, and no shift in point of impact. A great choice for anyone planning to run suppressed.

5. Style + Function

Whether you want a retro 3-prong, a modern multi-slot, or a low-profile tactical look, aftermarket flash hiders let you match your rifle’s personality while upgrading its performance.

Vortex G6-A3 Flash Eliminator22 Cal 1/2-28 Steel Parkerize

If you’re serious about your AR-15, this isn’t just a flash hider—it’s the must have upgrade designed for real-world use. The Vortex G6-A3 Flash Eliminator helps you shoot faster, see clearer, and stay stealthier—whether you’re hitting the range or prepping for duty.

What’s In It For You:

Nearly 100% Flash Suppression – Thanks to its four specially angled flutes, this flash eliminator eats muzzle flash—even under full-auto fire. That means better visibility, less distraction, and preserved night vision.

Improved Accuracy with Every Shot – The helical flute design isn’t just for show—it helps align gases as they exit, giving you a tighter, more stable shot pattern no matter what bullet type you’re using.

Rock-Solid Strength You Can Trust – Forged from the same ultra-durable 8620 steel used in military-grade AR bolts and carriers, and case-hardened for extreme durability. It can take abuse—and keep performing.

Perfect Fit & Suppressor Ready – A built-in skirt extension hides the barrel gap for a clean look, and the grooved base lets you mount a Blank Firing Attachment or M4DC CQB suppressor (if authorized). No washers needed—just torque it down and it self-tightens as you shoot. 🔧

Suppressor-Friendly – The G6-A3’s outer helical grooves reduce carbon buildup, making it easier to install or remove a suppressor like the M4DC—especially after a long day of shooting.

Compliant Build Solution – Can be permanently pinned to a 14.5” barrel to meet the legal 16.1” minimum rifle length.

Specs At a Glance:

• Material: 8620 steel, Parkerized matte black finish

• Thread: 1/2″-28 TPI

• Length: 2.31” | Diameter: 0.858” | Weight: 3.1 oz

• Fits: AR-15, M16, M4 platforms

✅ Get it now on Brownells

🔝 Top AR-15 Muzzle Brakes

If you want to shoot faster, flatter, and stay on target, upgrading to an aftermarket muzzle brake is a smart move. Here’s why it delivers real performance gains:

1. Cut Recoil = Shoot More Comfortably

Aftermarket muzzle brakes significantly reduce recoil—often by 50% or more. That means less shoulder fatigue, especially during long range sessions or rapid-fire training. You’ll enjoy shooting more and stay in control, even with hotter loads.

2. Stay on Target for Faster Follow-Ups

By redirecting gas outward and upward, a quality muzzle brake helps control muzzle rise, keeping your barrel steady. That means faster, more accurate follow-up shots—whether for sport shooting, tactical applications, or home defense.

3. Improve Accuracy Under Stress

With reduced recoil and muzzle climb, you can stay focused and shoot more precisely under pressure. Perfect for engaging multiple targets or shooting tight groups during competitions or drills.

4. Tailored Performance for Your Build

Aftermarket brakes come in different styles—from aggressive 3-port designs to hybrid compensator models. You can choose the one that best matches your shooting style, barrel length, and even suppressor setup.

Precision Armament Hypertap Muzzle Brake

The Precision Armament Hypertap Muzzle Brake is designed for shooters who want to fine-tune how their rifle handles under recoil—whether for faster follow-ups, better control during drills, or improved comfort over long shooting sessions.

At the core of its performance is Precision Armament’s Convergent-Divergent port geometry, which helps redirect gases in a way that significantly reduces felt recoil—up to 84%, according to internal testing. That’s about 10% more than their earlier M4-72 model, while maintaining the same 35-degree baffle angles and bore clearance to ensure safe operation and reliable accuracy.

Key Features for End Users:

• Tunable Gas Biasing – One of the more practical features is the ability to adjust how gas vents using a built-in universal timing nut. This helps you eliminate blast that might interfere with your line of sight, especially in precision or rapid-fire use.

• Cleaner Shooting – The design helps cut down on gas blowback and muzzle disturbance, improving both comfort and sight picture stability.

• Straightforward Installation – The included timing nut eliminates the need for crush washers or shims, making install and alignment simpler.

• High Material Quality – Built from high-strength steel, the Hypertap is designed to handle the demands of high-volume shooters without degrading performance.

Specs:

• Caliber: .223 / 5.56mm

• Weight: 3 oz

• Length: 2.54 in

• Thread: 1/2×28 TPI

This brake is especially suited for competitive shooters or anyone setting up a precision or training-oriented rifle where control and consistency matter.

If you’ve used the M4-72 or something similar, I’d say this feels like a more refined version. Not necessarily better for everyone, but a solid option depending on your setup.

✅ Check it out on Brownells

🔝 Top AR-15 Weapon Lights

Adding a weapon light to your AR-15 isn’t just tactical flair—it’s a functional tool that enhances safety, speed, and decision-making in real-world conditions.

1. Positive Target Identification in Low Light

One of the most important rules of firearm safety is “know your target and what’s beyond it.” In low-light or no-light environments—home defense, night shooting, indoor training—a weapon light lets you visually identify a threat before pulling the trigger. This is critical for avoiding tragic mistakes.

2. Improved Accuracy and Faster Reactions

A good weapon light gives you clear visual feedback on your sight picture, your target, and your surroundings. That leads to more confident shots, faster reaction time, and better decision-making under stress.

3. Free Hands, Clear Controls

Unlike a handheld flashlight, a weapon-mounted light keeps your support hand free to stabilize the rifle, operate your safety, or control a door—without sacrificing visibility. It also helps maintain a proper two-handed shooting grip.

4. Tactical Advantage

A powerful light can disorient or temporarily blind an intruder or adversary, giving you a split-second edge to act. Combined with good technique, it’s a powerful defensive tool—not just illumination.

5. Essential for Training and Home Defense

Whether you’re running drills or setting up a reliable home defense rifle, a weapon light helps bridge the gap between day and night. It ensures your AR is ready 24/7—not just in daylight.

Final Word:

If you train or plan for real-world situations, a weapon light is one of the most practical accessories you can add to your AR-15. It’s about more than just seeing in the dark—it’s about staying in control when it matters most.

Surefire X300 Weaponlight

The SureFire X300U-A has earned a strong reputation among law enforcement, military professionals, and civilian users alike for one main reason: it works when it matters most. Built for rugged reliability and high-output performance, this rail-mounted light delivers 1,000 lumens of clean, white LED light in a compact, field-proven package.

Why It’s a Practical Upgrade:

Effective Illumination at Useful Ranges
The precision-engineered TIR lens delivers a focused center beam that reaches out to 213 meters, while also spreading ambient light to illuminate surroundings. This helps with target ID at a distance while maintaining peripheral awareness—critical for both indoor clearing and outdoor use.

Instant Activation Without Changing Your Grip
With ambidextrous switches built into the tailcap, you get fast, intuitive momentary or constant-on light—no grip shift required. For those running a rifle setup, optional remote switches are also available for even more control.

Built for Harsh Conditions
The body is machined from aerospace-grade aluminum, finished with a Mil-Spec hard anodizing for durability, and sealed to IPX7 standards (waterproof to 1 meter for 30 minutes). This light is designed to survive hard use, weather, and recoil.

Quick Rail Attachment
Using SureFire’s Rail-Lock® system, the X300U-A quickly mounts to both Picatinny and Universal rails, making it a solid choice for both handguns and carbines.

If you’re looking for a proven, no-nonsense weapon light that delivers performance under pressure, the X300U-A is a strong option—especially if you run both handguns and rifles with shared accessories.

✅View the SureFire X300U-A on Brownells