Remington 700

Remington 700 Chassis

A Remington 700 chassis is a rigid aluminum or polymer housing that replaces the factory wood or synthetic stock on a Remington 700 bolt-action rifle, providing a bedding block for the action, a free-floated forend for the barrel, and modular attachment points for grips, buttstocks, magazines, and accessories. A Remington 700 chassis system converts the rifle from a traditional stock to a detachable-magazine-fed platform with adjustable length of pull (LOP), adjustable cheek riser height, and Modular Lightweight Load-carrying Equipment (M-LOK) or Picatinny rail slots for bipods, sling mounts, and night vision devices. There are 6 primary Remington 700 chassis manufacturers: Modular Driven Technologies (MDT), Kinetic Research Group (KRG), Cadex Defence, XLR Industries, Magpul, and Accuracy International. This guide covers how Remington 700 chassis systems work, chassis brands and models with prices, short action versus long action chassis fitment, lightweight chassis options, chassis systems for Precision Rifle Series (PRS) competition, Remington 700 clone compatibility, and chassis installation.

How Remington 700 Chassis Systems Work

A Remington 700 chassis system uses a machined aluminum bedding block that contacts the receiver on 3 surfaces — the flat bottom, the recoil lug slot, and the 2 action screw holes — and eliminates the bedding inconsistencies found in wood and injection-molded polymer stocks. The barreled action drops into the bedding block and 2 action screws torqued to 45 to 65 inch-pounds (5.1 to 7.3 newton-meters or Nm) clamp the receiver against the bedding surfaces. The forend extends forward of the receiver and does not contact the barrel at any point, which allows the barrel to vibrate freely and produce consistent shot-to-shot accuracy. A magazine well built into the chassis accepts detachable Accuracy International Chassis System (AICS)-pattern magazines or proprietary magazines, and the magazine release sits inside the trigger guard for ambidextrous operation.

The rear of the chassis accepts a pistol grip and a buttstock. Most chassis systems use AR-15-compatible pistol grips with a 1/4 inch-28 grip screw, and buttstocks attach through a buffer tube interface or a proprietary folding mechanism. The adjustable cheek riser moves 1 to 2 inches (25.4 to 50.8 mm) vertically to match scope mounting height, and LOP spacers between the buttstock and recoil pad adjust LOP from 12.5 to 15 inches (317.5 to 381 mm).

Remington 700 Chassis Brands

MDT Chassis Systems

Modular Driven Technologies (MDT) manufactures 8 chassis and stock systems for the Remington 700 at price points from $299.99 to $1,599.99:

• MDT ORYX Chassis System ($449.99): an aluminum-reinforced polymer chassis with AICS magazine compatibility, adjustable LOP, and adjustable cheek riser height — available in black, Flat Dark Earth (FDE), Olive Drab Green (ODG), and gray
• MDT Field Stock ($299.99): a polymer stock with aluminum bedding block designed for hunting rifles — available in black, FDE, and ODG
• MDT XRS Chassis System ($599.99): an aluminum chassis with M-LOK forend slots, AICS magazine compatibility, and a folding stock option — available in black and FDE
• MDT HNT26 Chassis System ($1,599.99): a carbon fiber and aluminum hunting chassis weighing under 2 pounds (0.9 kilograms or kg) — available in black carbon fiber and cobalt green
• MDT ACC Elite Chassis System ($1,599.99): a weight-tunable aluminum chassis with internal barricade stops and a full-length forend — available in black, FDE, and titanium blue
• MDT ACC Premier GEN2 Chassis System ($1,199.99): a competition chassis with adjustable weight balance and M-LOK forend — available in black, FDE, and charcoal green
• MDT CRBN Rifle Stock ($1,299.99): a carbon fiber stock with aluminum bedding that weighs under 1.5 pounds (0.68 kg) — available in 6 patterns including black carbon fiber, woodland, and hunter blaze
• MDT TIMBR CORE Rifle Stock ($499.99): a wood-and-aluminum hybrid stock with walnut side panels and an aluminum chassis core — available in walnut, charcoal, and green mountain camo

MDT LSS Gen3 kits are available as The Worker ($629.99) and The Competitor ($1,159.99) configurations. The Worker includes the LSS Gen3 chassis with a basic buttstock, and The Competitor adds an adjustable buttstock and upgraded grip.

KRG Chassis Systems

Kinetic Research Group (KRG) manufactures the Bravo Chassis in Generation 1 (Gen 1) and Generation 2 (Gen 2) versions for the Remington 700 short action (SA) and long action (LA). The Bravo Chassis Gen 2 features tool-less cheek piece height adjustment with 1 inch (25.4 mm) of travel, LOP spacers, and a high-quality recoil pad. The KRG Bravo ships with a polymer forend and is available with an optional Arca Enclosed Forend that adds an Arca-Swiss rail along the bottom for tripod clamping. The Bravo Chassis Gen 2 is available in black, stealth grey, FDE, and Sako green. KRG also manufactures the Bolt Lift SV for the Remington 700, a bolt handle extension that increases bolt lift leverage.

Cadex Defence Chassis Systems

Cadex Defence manufactures 12 chassis systems compatible with the Remington 700, ranging from ultralight hunting platforms to heavy tactical systems used by military special forces units. The Cadex chassis lineup includes 4 categories:

• Hunting chassis: the Tundra Strike balances weight reduction, rigidity, and stability for backcountry use
• Competition chassis: the Strike Pro is built for PRS positional shooting, and the Strike XS incorporates features for both competition and field operations
• Tactical chassis: the Dual Strike is the most stable and ruggedized Cadex chassis system used by special forces units, the Field Tactical has full-length 20 Minute of Angle (MOA) top rail and accessory rails at 3, 6, and 9 o'clock positions, and the Field Competition has an open-top design for custom Remington 700 clone actions with integrated top rails
• Lightweight chassis: the Lite Strike is 1 pound (0.45 kg) lighter than the Dual Strike with a smaller contour forend tube, and the Lite Competition adds a competition-length forend

The Strike Nuke Evo is a micro-chassis with traditional stock ergonomics, high-density fiberglass-reinforced polymer construction, and M-LOK technology. Cadex also offers the Field Quick Detach (QD), Tactical Core, OT Core, and Field Core as discontinued models available on request while supplies last.

XLR Industries Chassis Systems

XLR Industries manufactures the ATOM and Element chassis systems for the Remington 700 SA, LA, and custom 700 clone actions. The XLR ATOM is a modular aluminum chassis with a carbon fiber option and supports a wide range of Remington 700 action inlets. XLR publishes a complete action inlet list on the XLR Industries website for builders verifying compatibility with custom actions.

Magpul and Other Chassis Options

The Magpul Pro 700 chassis is a folding-stock aluminum chassis for the Remington 700 SA with AICS magazine compatibility, full-length M-LOK forend, and an ambidextrous folding stock mechanism. The Magpul Hunter 700 stock is a polymer stock with an aluminum bedding block and M-LOK forend slots at a lower price point than full chassis systems. The Accuracy International AT chassis accepts the Remington 700 action and uses proprietary Accuracy International Arctic Warfare (AW) magazines. The Masterpiece Arms (MPA) BA Competition Chassis is an aluminum chassis designed for PRS competition with a thumb rest, barricade stop, and Arca rail built into the forend.

Remington 700 Short Action vs Long Action Chassis

Remington 700 chassis systems are manufactured in 2 action lengths — short action and long action — and each chassis must match the receiver's action length for proper magazine well alignment and action screw spacing. Short action (SA) Remington 700 receivers chamber cartridges with an overall length up to 2.810 inches (71.4 mm), including .308 Winchester, 6.5 Creedmoor, .243 Winchester, and .223 Remington. Long action (LA) Remington 700 receivers chamber cartridges with an overall length up to 3.340 inches (84.8 mm), including .30-06 Springfield, .300 Winchester Magnum, 7mm Remington Magnum, and .338 Lapua Magnum. Commission Internationale Permanente (CIP) long action chassis extend the magazine well to 3.850 inches (97.8 mm) for European-spec magnum cartridges. The Remington 700 medium action uses the same receiver length as the short action but with a longer magazine box — most SA chassis fit medium action receivers with an extended magazine option.

Lightweight Remington 700 Chassis Options

Lightweight Remington 700 chassis systems weigh under 2.5 pounds (1.13 kg) and are designed for backcountry hunting where every ounce affects the total carry weight over long distances. The MDT HNT26 at 1,599.99 dollars weighs under 2 pounds (0.9 kg) and uses carbon fiber panels bonded to an aluminum bedding block. The MDT CRBN stock weighs under 1.5 pounds (0.68 kg) and uses a full carbon fiber shell. The Cadex Tundra Strike prioritizes rigidity-to-weight ratio over absolute minimum weight, which provides better stability from field shooting positions than ultralight carbon fiber options. The KRG Bravo Gen 2 with standard polymer forend weighs approximately 2.5 pounds (1.13 kg) and is the lightest KRG option for the Remington 700.

Remington 700 Chassis for PRS Competition

Precision Rifle Series (PRS) competition requires a chassis with a barricade stop for positional shooting, a flat-bottomed forend for bag stability, adjustable weight distribution for balance, and an Arca-Swiss rail for rapid tripod mounting. There are 4 chassis systems designed for PRS competition on the Remington 700:

• MDT ACC Elite ($1,599.99): internal barricade stops, full-length M-LOK forend, and adjustable weight with internal weight inserts
• MDT ACC Premier GEN2 ($1,199.99): adjustable weight balance and competition-oriented forend geometry
• Cadex Strike Pro: built for positional shooting with features that reduce transition time between shooting positions
• Masterpiece Arms (MPA) BA Competition: integrated Arca rail, thumb rest, and barricade stop in the forend

A competition chassis adds 1.5 to 3 pounds (0.68 to 1.36 kg) to the rifle compared to a factory stock, and PRS rules impose no maximum rifle weight. The added weight reduces felt recoil and stabilizes the rifle on barricades, tripods, and rear bags during timed stages.

Remington 700 Clone Compatibility

The Remington 700 footprint is the most widely cloned bolt-action receiver pattern, and most Remington 700 chassis systems accept clone actions from 12 manufacturers. Compatible clone actions include Howa 1500 (SA and LA) and Weatherby Vanguard (SA and LA, which share the Howa 1500 action), Tikka T3 and T3x (SA and LA), Savage (SA and LA), Ruger American (SA, LA, and AR Magazine), Ruger M77 SA, Mossberg MVP (.223 and .308) and Mossberg Patriot (SA and LA), CZ 455 and CZ 457, Thompson/Center Compass SA, Winchester XPR SA, and the Howa Mini action. Each manufacturer's chassis website lists the specific action inlets available, and not every chassis accommodates every clone — verify the action inlet before ordering.

The MDT ORYX, XRS, and ACC chassis families support the widest range of Remington and clone action inlets. The KRG Bravo is available for Remington 700, Tikka T3/T3x, and Howa 1500 actions. Cadex Defence chassis systems fit Remington 700 and selected clone actions. XLR Industries publishes a complete action inlet list for the ATOM chassis covering all supported precision rifle platforms.

How to Install a Remington 700 Chassis

To install a Remington 700 chassis, remove the barreled action from the factory stock by unscrewing the 2 action screws (front and rear) with a torque wrench or hex driver, lift the barreled action out of the stock, drop the barreled action into the chassis bedding block, and torque the action screws to the chassis manufacturer's specification. Most Remington 700 chassis systems specify action screw torque between 45 and 65 inch-pounds (5.1 to 7.3 Nm). Attach the pistol grip with the grip screw, install the buttstock onto the buffer tube or folding hinge, and insert an AICS-pattern magazine to verify feed and lockup. The entire installation takes 15 to 30 minutes with basic hand tools and requires no permanent modification to the rifle — the barreled action drops back into the factory stock at any time.

Verify that the barrel floats freely inside the forend channel by sliding a dollar bill between the barrel and forend from the action to the muzzle. Contact between the barrel and forend creates pressure that changes point of impact and reduces accuracy. Tighten the action screws in a cross pattern (front screw first, rear screw second) and re-torque after the first 50 rounds to account for initial settling of the bedding surfaces.