AeroPrecision144599273
Aero 12.7 Mod 4 Handguard Odg$259.99
Availability: In Stock
Current Stock: Out of stock
The Aero Precision MOD 4 handguard is a precision-engineered AR-15 rail system designed to give you a rock-solid platform for optics, lights, and accessories without sacrificing ergonomics or adding unnecessary weight. At 12.7 inches, this handguard strikes a practical balance for mid-length builds—long enough for modern mounting options without overhanging your muzzle. Machined from 6061-T6 aluminum and paired with a steel barrel nut, it's built to minimize deflection under load, which means your zero stays your zero, especially critical if you're running an infrared laser or other precision aiming device.
Installation is straightforward: the barrel nut requires no timing, and its lug pattern matches standard mil-spec castle nuts, so you won't need specialty tools or guesswork. It plays well with Aero's M4E1 Threaded Upper Receivers and most mil-spec AR-15 uppers, giving you flexibility if you're upgrading an existing rifle or building from scratch. The inclusion of anti-rotation set screws adds redundancy and ensures a snug, repeatable fit across different upper combinations.
Where the MOD 4 really shines is in customization. The full-length, 7-sided M-LOK interface gives you plenty of real estate to mount rails, bipods, sling attachments, and lights exactly where you want them. Steel-reinforced QD sockets handle repeated attachment cycles without wearing out, a small detail that pays dividends if you rotate between multiple slings or swap gear regularly. At 16.12 ounces, it's light enough to keep your rifle handling quick without feeling flimsy.
| Platform | AR-15 Series |
| Model | MOD 4 |
| Length | 12.7 inches |
| Material | 6061-T6 aluminum (handguard); steel (barrel nut) |
| Attachment Type | M-LOK |
| Internal Diameter | 1.2 inches |
| Weight | 16.12 ounces |
| Barrel Nut Torque | 55 ± 5 in-lbs |
| QD Sockets | 4, steel-reinforced |
The MOD 4 is designed to match Aero's M4E1 Threaded Upper Receivers and the PRO series, and it's also compatible with standard mil-spec AR-15 upper receivers. The barrel nut lug pattern matches mil-spec castle nuts, so installation is straightforward across compatible platforms.
Yes, the MOD 4 handguard is rated compatible with low-profile gas blocks.
You get the MOD 4 handguard, the MOD 4 barrel nut, and mounting hardware. No specialty tools are required for installation since the barrel nut design eliminates the need for timing.
The 12.7-inch version weighs 16.12 ounces, making it a lightweight option that doesn't compromise on stiffness or durability.
SKU: 144599507 • Weight: 1oz
Availability: In Stock
Current Stock: Out of stock
The Aero Precision MOD 4 handguard is a precision-engineered AR-15 rail system designed to give you a rock-solid platform for optics, lights, and accessories without sacrificing ergonomics or adding unnecessary weight. At 12.7 inches, this handguard strikes a practical balance for mid-length builds—long enough for modern mounting options without overhanging your muzzle. Machined from 6061-T6 aluminum and paired with a steel barrel nut, it's built to minimize deflection under load, which means your zero stays your zero, especially critical if you're running an infrared laser or other precision aiming device.
Installation is straightforward: the barrel nut requires no timing, and its lug pattern matches standard mil-spec castle nuts, so you won't need specialty tools or guesswork. It plays well with Aero's M4E1 Threaded Upper Receivers and most mil-spec AR-15 uppers, giving you flexibility if you're upgrading an existing rifle or building from scratch. The inclusion of anti-rotation set screws adds redundancy and ensures a snug, repeatable fit across different upper combinations.
Where the MOD 4 really shines is in customization. The full-length, 7-sided M-LOK interface gives you plenty of real estate to mount rails, bipods, sling attachments, and lights exactly where you want them. Steel-reinforced QD sockets handle repeated attachment cycles without wearing out, a small detail that pays dividends if you rotate between multiple slings or swap gear regularly. At 16.12 ounces, it's light enough to keep your rifle handling quick without feeling flimsy.
| Platform | AR-15 Series |
| Model | MOD 4 |
| Length | 12.7 inches |
| Material | 6061-T6 aluminum (handguard); steel (barrel nut) |
| Attachment Type | M-LOK |
| Internal Diameter | 1.2 inches |
| Weight | 16.12 ounces |
| Barrel Nut Torque | 55 ± 5 in-lbs |
| QD Sockets | 4, steel-reinforced |
The MOD 4 is designed to match Aero's M4E1 Threaded Upper Receivers and the PRO series, and it's also compatible with standard mil-spec AR-15 upper receivers. The barrel nut lug pattern matches mil-spec castle nuts, so installation is straightforward across compatible platforms.
Yes, the MOD 4 handguard is rated compatible with low-profile gas blocks.
You get the MOD 4 handguard, the MOD 4 barrel nut, and mounting hardware. No specialty tools are required for installation since the barrel nut design eliminates the need for timing.
The 12.7-inch version weighs 16.12 ounces, making it a lightweight option that doesn't compromise on stiffness or durability.
SKU: 144599507 • Weight: 1oz