AeroPrecision144600369
Aero 10.6 Mod 4 Handguard Kb$249.99
Availability: In Stock
Current Stock: Out of stock
The Aero Precision MOD 4 handguard is a precision-engineered rail system purpose-built for AR-15 shooters who demand stiffness, accuracy, and versatility without compromise. Machined from 6061-T6 aluminum and anchored by a steel barrel nut, the MOD 4 is designed to minimize deflection under load—a critical feature for shooters running optics, IR lasers, or other mounted systems where point-of-impact shift can cost you. Whether you're running a precision rifle, a tactical AR, or a competition build, the MOD 4 delivers the kind of rigid platform that separates solid shooting from drift and frustration.
What sets the MOD 4 apart is its thoughtful engineering. The steel barrel nut eliminates timing requirements and uses a mil-spec castle nut lug pattern, so you won't need specialty tools or guesswork during install. The 7-sided M-LOK interface runs the full length of the rail, giving you genuine flexibility to mount lights, vertical grips, pressure switches, and other gear exactly where you want them. Four steel-reinforced QD sockets handle repeated attachment cycles without the premature wear you see on cheaper aluminum sockets—a small detail that matters when your sling setup is mission-critical.
The MOD 4 ships with the handguard, barrel nut, and mounting hardware, and it's compatible with Aero's M4E1 Threaded uppers, PRO series components, and standard mil-spec AR-15 upper receivers. Two anti-rotation set screws ensure a tight, consistent fit, even if you're swapping it between uppers. Available in five lengths from 10.6" to 15", the MOD 4 adapts to your barrel profile and use case.
| Platform | AR-15 |
| Series | MOD 4 |
| Material | 6061-T6 Aluminum |
| Attachment Type | M-LOK |
| Available Lengths | 10.6", 11.4", 12.7", 13.5", 15" |
| Weight (10.6") | 14.78 oz |
| Weight (11.4") | 15.06 oz |
| Weight (12.7") | 16.12 oz |
| Weight (13.5") | 16.75 oz |
| Weight (15") | 17.73 oz |
| Internal Diameter | 1.2" |
| QD Sockets | 4 Steel-Reinforced |
| Barrel Nut Torque | 55 ± 5 in-lbs |
The MOD 4 is designed to pair seamlessly with Aero Precision's M4E1 Threaded Upper Receivers and PRO series components. It's also fully compatible with any mil-spec AR-15 upper receiver.
No. The barrel nut eliminates timing requirements and uses a standard mil-spec castle nut lug pattern, so you can install it with common AR tools—no specialty nut wrench or alignment jigs required.
The MOD 4 package includes the handguard, steel barrel nut, and mounting hardware. You'll also get two anti-rotation set screws to ensure a tight fit.
Yes. The MOD 4 is specifically engineered to reduce point-of-impact shift when running IR lasers or other mounted systems under load, thanks to its rigid 6061-T6 aluminum construction and steel barrel nut design.
SKU: 144596911 • Width: 3.1in • Height: 3.05in • Depth: 22.25in • Weight: 1oz
Availability: In Stock
Current Stock: Out of stock
The Aero Precision MOD 4 handguard is a precision-engineered rail system purpose-built for AR-15 shooters who demand stiffness, accuracy, and versatility without compromise. Machined from 6061-T6 aluminum and anchored by a steel barrel nut, the MOD 4 is designed to minimize deflection under load—a critical feature for shooters running optics, IR lasers, or other mounted systems where point-of-impact shift can cost you. Whether you're running a precision rifle, a tactical AR, or a competition build, the MOD 4 delivers the kind of rigid platform that separates solid shooting from drift and frustration.
What sets the MOD 4 apart is its thoughtful engineering. The steel barrel nut eliminates timing requirements and uses a mil-spec castle nut lug pattern, so you won't need specialty tools or guesswork during install. The 7-sided M-LOK interface runs the full length of the rail, giving you genuine flexibility to mount lights, vertical grips, pressure switches, and other gear exactly where you want them. Four steel-reinforced QD sockets handle repeated attachment cycles without the premature wear you see on cheaper aluminum sockets—a small detail that matters when your sling setup is mission-critical.
The MOD 4 ships with the handguard, barrel nut, and mounting hardware, and it's compatible with Aero's M4E1 Threaded uppers, PRO series components, and standard mil-spec AR-15 upper receivers. Two anti-rotation set screws ensure a tight, consistent fit, even if you're swapping it between uppers. Available in five lengths from 10.6" to 15", the MOD 4 adapts to your barrel profile and use case.
| Platform | AR-15 |
| Series | MOD 4 |
| Material | 6061-T6 Aluminum |
| Attachment Type | M-LOK |
| Available Lengths | 10.6", 11.4", 12.7", 13.5", 15" |
| Weight (10.6") | 14.78 oz |
| Weight (11.4") | 15.06 oz |
| Weight (12.7") | 16.12 oz |
| Weight (13.5") | 16.75 oz |
| Weight (15") | 17.73 oz |
| Internal Diameter | 1.2" |
| QD Sockets | 4 Steel-Reinforced |
| Barrel Nut Torque | 55 ± 5 in-lbs |
The MOD 4 is designed to pair seamlessly with Aero Precision's M4E1 Threaded Upper Receivers and PRO series components. It's also fully compatible with any mil-spec AR-15 upper receiver.
No. The barrel nut eliminates timing requirements and uses a standard mil-spec castle nut lug pattern, so you can install it with common AR tools—no specialty nut wrench or alignment jigs required.
The MOD 4 package includes the handguard, steel barrel nut, and mounting hardware. You'll also get two anti-rotation set screws to ensure a tight fit.
Yes. The MOD 4 is specifically engineered to reduce point-of-impact shift when running IR lasers or other mounted systems under load, thanks to its rigid 6061-T6 aluminum construction and steel barrel nut design.
SKU: 144596911 • Width: 3.1in • Height: 3.05in • Depth: 22.25in • Weight: 1oz