AR-15 5.56 Super Duty Rifle Build Kit DDC
$1,834.99 at Brownells
In stock
Best price
$2,599.99at MidwayUSA
In stock checked Nov 10, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $2,599.99checked Nov 10, 2026 | In stock | Buy at MidwayUSA | |
| OpticsPlanet | $2,669.00Salechecked Nov 10, 2026 | In stock | Buy at OpticsPlanet | |
| Kentucky Gun Co | $2,849.00checked Nov 10, 2026 | In stock | Buy at Kentucky Gun Co | |
| Guns.com | $2,773.99checked Nov 10, 2026 | Check store | Buy at Guns.com | |
| Battlehawk Armory | $2,849.00Salechecked Nov 10, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $2,849.99checked Nov 10, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $2,599.99 at MidwayUSA. Dashed line = out of stock. Tracking since Nov 7, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | $2,849.00 | $2,849.00 | $2,849.00 |
| Guns.com | $2,773.99 | $2,768.99 | $2,773.99 |
| Kentucky Gun Co | $2,849.00 | $2,849.00 | $2,849.00 |
| MidwayUSA | $2,599.99 | $2,599.99 | $2,599.99 |
| OpticsPlanet | $2,669.00 | $2,669.00 | $2,829.00 |
| Palmetto State Armory | $2,849.99 | $2,849.99 | $2,849.99 |
Since Nov 7, 2026.
About this part
The Seekins Precision SP3R M-LOK Rail System12in is a 12" handguard from Seekins Precision. It's sold by 6 stores (3 in stock), from $2,599.99 to $2,849.99. The lowest in-stock price in the last 30 days was $2,599.99 at MidwayUSA.
Fits and works with
- Handguard length
- 12" · Barrels
Specifications
- Manufacturer
- Seekins Precision
- Length
- 12"
- Attachment
- M-LOK
From the manufacturer
Seekins Precision SP3R M-Lok Rail System12in. Enhance your rifle with these AR Handguards & Forends by Seekins Precision to gain more versatility in mounting optics and accessories thanks to the top integrated Picatinny rail. Some additional features of the SP3R V3 Rail System include six anti-rotation QD sling attachment points and cooling slots that provide optimal airflow to keep barrels from overheating during long runs at the range. The flat bottom design of this rail system gives your rifle more stability making it an excellent addition for competitive shooters and hunters. This is your one-stop solution to enhancing your handguard since all essential mounting hardware is included with this product including the SP3R mounting nut eight grade 8 T20 Torx screws and a steel barrel nut. Built for competition built from high-grade aluminum built to last - the SP3R V3 AR-15 Platform Rail System is a premium lightweight addition to your firearm. Please note that this model is NOT compatible with the Ruger Precision Rifle without first purchasing the Ruger Mounting Nut and this product is not compatible with AR10 platforms. Specifications for Seekins Precision SP3RV3 M-Lok Rail System: Manufacturer: Seekins Precision Color: Matte Black Finish: Hardcoat Anodized Fabric/Material: 6061-T6 Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Handguard Length: 12 in Gun Rail: M-LOK Weight: 16.5 oz Condition: New Included Accessories: Standard Inner Diameter: 1.8 in Attachment Type: Quick Detach Quantity: 1 Length: 12 in Features: Machined from 6061-T6 aluminum Precision rifle flat bottom design for stability 1pc Free Float Design Type III Class 2 Hardcoat Anodized matte black Six integrally machined anti-rotation QD sling mounts Maximum barrel diameter for barrel nut is 1.00in Not Compatible with the AR-10 platform Package Contents: Seekins Precision SP3RV3 M-Lok Rail System Seekins Precision 0010530037: SP3R M-Lok Rail System12in
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