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Dpms
The DPMS Firearms .308 Win 18 FSB rifle is a mid-length gas system rifle built around the proven AR-10 platform, designed for shooters who want a .308 Winchester rifle with a compact 18-inch barrel and integrated front sight base gas block. Whether you're setting up a rifle for mid-range hunting, precision shooting, or a reliable semi-auto centerfire platform, this rifle combines DPMS's heritage in AR-pattern rifles with materials and components engineered to handle the higher pressures and heat of .308 Winchester ammunition.
The build starts with a chrome-lined, nitrided barrel in a heavy profile with a 1-in-10 twist rate, paired to DPMS's Classic polymer mid-length handguard and front sight base gas block. The upper receiver is machined from forged 7075-T6 aluminum and hardcoat anodized to MIL specification; the bolt carrier group uses a Toolcraft PA10 assembly with 9310 steel components, nitrided for durability, and an extra-power extractor spring for reliable feeding. Every joint that matters—including the gas key—is properly staked with Grade 8 fasteners. The lower receiver is also forged 7075-T6 aluminum and anodized, fitted with a Panther Polished Trigger, DPMS Classic 6-position adjustable stock, and overmolded A2 grip, all in black.
This is a rifle that respects function over flash. The flat-top receiver has M4 feed ramps and a forward assist; the 20-round PMAG and dust cover round out a complete, ready-to-shoot package. If you're looking for a no-nonsense .308 platform with an 18-inch barrel and an integrated front sight, the DPMS .308 FSB delivers the kind of straightforward reliability that has made AR-10s the standard for semi-auto rifle shooters.
| Caliber | .308 Winchester |
| Barrel Length | 18 inches |
| Barrel Material | Chrome-lined, nitrided |
| Barrel Profile | Heavy |
| Twist Rate | 1 in 10 |
| Gas System | Mid-length |
| Gas Block | Front sight base |
| Upper Receiver | Forged 7075-T6 aluminum, hardcoat anodized |
| Receiver Style | Flat-top with M4 feed ramps |
| Forward Assist | Yes |
| Bolt Carrier Group | Toolcraft PA10, nitrided 9310 steel, extra-power extractor spring |
| Gas Key | Staked with Grade 8 fasteners |
| Lower Receiver | Forged 7075-T6 aluminum, hardcoat anodized |
| Trigger | Panther Polished Trigger (PPT) |
| Stock | DPMS Classic 6-position adjustable, black |
| Grip | DPMS custom overmolded A2, black |
| Handguard | DPMS Classic polymer mid-length |
| Magazine | 1x 20-round PMAG |
| Dust Cover | Yes |
The DPMS .308 Win FSB comes assembled and includes a 20-round PMAG, so you have a complete rifle and magazine. You'll need to acquire ammunition and handle the normal pre-fire inspection and safety checks any shooter should perform on any firearm before use.
This rifle uses a mid-length gas system paired with an 18-inch barrel and front sight base gas block. Mid-length systems on shorter barrels are known for balancing reliability and ergonomics.
FSB stands for front sight base. This rifle's gas block is integrated into the front sight base, combining both functions into one component mounted at the gas tube location.
The rifle is equipped with a Panther Polished Trigger (PPT). The supplied description does not detail whether it is adjustable; we recommend confirming trigger specifications with a DPMS representative or detailed manual if adjustability is important to your use case.
Dpms
The DPMS Firearms .308 Win 18 FSB rifle is a mid-length gas system rifle built around the proven AR-10 platform, designed for shooters who want a .308 Winchester rifle with a compact 18-inch barrel and integrated front sight base gas block. Whether you're setting up a rifle for mid-range hunting, precision shooting, or a reliable semi-auto centerfire platform, this rifle combines DPMS's heritage in AR-pattern rifles with materials and components engineered to handle the higher pressures and heat of .308 Winchester ammunition.
The build starts with a chrome-lined, nitrided barrel in a heavy profile with a 1-in-10 twist rate, paired to DPMS's Classic polymer mid-length handguard and front sight base gas block. The upper receiver is machined from forged 7075-T6 aluminum and hardcoat anodized to MIL specification; the bolt carrier group uses a Toolcraft PA10 assembly with 9310 steel components, nitrided for durability, and an extra-power extractor spring for reliable feeding. Every joint that matters—including the gas key—is properly staked with Grade 8 fasteners. The lower receiver is also forged 7075-T6 aluminum and anodized, fitted with a Panther Polished Trigger, DPMS Classic 6-position adjustable stock, and overmolded A2 grip, all in black.
This is a rifle that respects function over flash. The flat-top receiver has M4 feed ramps and a forward assist; the 20-round PMAG and dust cover round out a complete, ready-to-shoot package. If you're looking for a no-nonsense .308 platform with an 18-inch barrel and an integrated front sight, the DPMS .308 FSB delivers the kind of straightforward reliability that has made AR-10s the standard for semi-auto rifle shooters.
| Caliber | .308 Winchester |
| Barrel Length | 18 inches |
| Barrel Material | Chrome-lined, nitrided |
| Barrel Profile | Heavy |
| Twist Rate | 1 in 10 |
| Gas System | Mid-length |
| Gas Block | Front sight base |
| Upper Receiver | Forged 7075-T6 aluminum, hardcoat anodized |
| Receiver Style | Flat-top with M4 feed ramps |
| Forward Assist | Yes |
| Bolt Carrier Group | Toolcraft PA10, nitrided 9310 steel, extra-power extractor spring |
| Gas Key | Staked with Grade 8 fasteners |
| Lower Receiver | Forged 7075-T6 aluminum, hardcoat anodized |
| Trigger | Panther Polished Trigger (PPT) |
| Stock | DPMS Classic 6-position adjustable, black |
| Grip | DPMS custom overmolded A2, black |
| Handguard | DPMS Classic polymer mid-length |
| Magazine | 1x 20-round PMAG |
| Dust Cover | Yes |
The DPMS .308 Win FSB comes assembled and includes a 20-round PMAG, so you have a complete rifle and magazine. You'll need to acquire ammunition and handle the normal pre-fire inspection and safety checks any shooter should perform on any firearm before use.
This rifle uses a mid-length gas system paired with an 18-inch barrel and front sight base gas block. Mid-length systems on shorter barrels are known for balancing reliability and ergonomics.
FSB stands for front sight base. This rifle's gas block is integrated into the front sight base, combining both functions into one component mounted at the gas tube location.
The rifle is equipped with a Panther Polished Trigger (PPT). The supplied description does not detail whether it is adjustable; we recommend confirming trigger specifications with a DPMS representative or detailed manual if adjustability is important to your use case.
