Getting the right length of pull can make a rifle feel noticeably better at the shoulder, improving comfort, control, and consistency.
Our roundup of the best rifle stock spacers for 2026 focuses on simple fit adjustments, durable materials, and options for different stock types and shooting needs.
Best 10 Rifle Stock Spacers Picks for 2026
Best for Custom Fit
- Grind-to-fit oversized design
- 1/8", 1/4", and 1/2" thicknesses
- Made in America
Best For: Shooters who want an adjustable spacer to fine-tune rifle or shotgun stock fit.
Best for Shell Storage
Tactaload LOP Spacers for FLASH-5 Gunstock
- Adds length-of-pull spacing and shell storage
- Keeps 5 rounds accessible on the stock
- Good fit for bird and duck hunting gear
Best For: Hunters using a compatible FLASH-5 stock who want spacer adjustment and onboard shell storage.
Best for Custom LOP Tuning
- Adjustable 1/8", 1/4", and 1/2" thicknesses
- Universal grind-to-fit design for rifles and shotguns
- Made in the USA and easy to shape for custom fit
Best For: Shooter who wants a universal spacer to fine-tune stock length and comfort.
Best for Crickett Fit
Keystone Crickett Stock Spacer Kit
- Custom fit for Keystone Crickett rifles
- Adds 0.75" or 1.5" length of pull
- Includes spacers and matching screws
Best For: Crickett owners who need a simple length-of-pull adjustment for a growing shooter.
Best for Easy Ring Conversion
30mm to 1" Scope Ring Reducer Shims
- Converts 30mm rings to 1" accessories
- Split design simplifies setup and removal
- Includes 4 sets for extra value
Best For: Shooters adapting existing 30mm rings to 1-inch optics or accessories.
Best for Custom Length of Pull
KICK-EEZ Grind-to-Fit Stock Spacer
- Adjusts length of pull for better comfort and control
- Universal grind-to-fit design fits many rifles and shotguns
- Available in multiple thicknesses for finer tuning
Best For: Shooters who want an adjustable spacer to dial in stock fit on a rifle or shotgun.
Best 30mm-to-1" Adapter
6 Sets 19mm Scope Ring Reducer
- 6 sets for multiple installs or spares
- Split polymer design for easy setup
- Lightweight 19mm-wide reducer inserts
Best For: Shooters needing an affordable 30mm-to-1" reducer for optics and accessories.
Best with Extra Features
KICK-EEZ Universal Stock Spacer
- Adjusts length of pull with 1/8", 1/4", and 1/2" options
- Oversized grind-to-fit design suits many rifles and shotguns
- Made in the USA with easy-to-shape polymer
Best For: Shooters who want a customizable spacer to improve rifle or shotgun stock fit.
Best Heavy-Duty Pick
KICK-EEZ Universal Grind-to-Fit Stock Spacer
- Adjustable 1/8", 1/4", and 1/2" thicknesses
- Universal grind-to-fit design for rifles and shotguns
- Easy-to-shape polymer, made in the USA
Best For: Shooters who want a customizable spacer to improve length of pull and stock fit.
Best Simple Pick
KICK-EEZ Universal Stock Spacer
- Universal grind-to-fit design
- Available in 1/8", 1/4", and 1/2" sizes
- Made in the USA with lightweight polymer
Best For: Shooters who want a customizable spacer to fine-tune rifle or shotgun stock fit.
Best for Custom Fit – KICK-EEZ Stock Spacer
If you need a simple way to tune length of pull, KICK-EEZ rifle stock spacers are a practical add-on for dialing in shoulder fit and shooting comfort. The oversized, grind-to-fit design works with most shotgun and rifle stocks, making it easy to customize without committing to a permanent modification.
Best For: Shooters who want an adjustable, made-in-USA spacer for fine-tuning stock fit on a rifle or shotgun.
Pros:
- Available in 1/8″, 1/4″, and 1/2″ thicknesses for precise adjustment
- Universal oversized design is easy to grind and fit to many stocks
- Can be layered for even more length-of-pull tuning
- Made in America with lightweight polymer construction
Cons:
- Requires sanding or fitting for the cleanest install
- May need multiple spacers to reach larger length changes
For shooters comparing rifle stock spacers, this model stands out for its flexibility and easy customization rather than a one-size-fits-all approach. It is a strong pick if you want a straightforward way to improve fit, control, and consistency.
Best for Shell Storage – Tactaload LOP Spacers for FLASH-5 Gunstock
If you want rifle stock spacers that also add shell storage, the Tactaload LOP Spacers for FLASH-5 Gunstock are a practical two-in-one accessory. They’re designed to help fine-tune length of pull while keeping extra rounds close at hand, which makes them a useful add-on for bird and duck hunting setups.
Best For: Hunters who want adjustable stock fit plus integrated 5-shell storage on a FLASH-5 gunstock.
Pros:
- Combines length-of-pull spacing with built-in shell holding
- Helps keep ammo accessible without adding much bulk
- Useful for upland, bird, and duck hunting applications
- Two-piece set offers a simple accessory upgrade
Cons:
- Made specifically for FLASH-5 gunstock compatibility
- Not ideal if you only want a basic spacer without shell storage
- May be overkill for shooters who prefer a minimal stock setup
For buyers comparing rifle stock spacers, this model stands out because it solves two problems at once: fit and field-ready storage. If you already run a compatible FLASH-5 stock and want a more functional setup, it’s a smart niche choice.
Best for Custom LOP Tuning – KICK-EEZ Stock Spacer
KICK-EEZ rifle stock spacers are a simple way to fine-tune length of pull, improve shoulder placement, and make a shotgun or rifle feel more natural in the mount. This oversized, grind-to-fit spacer is designed for broad compatibility, so it’s a practical upgrade when you want a cleaner stock fit without replacing the whole recoil pad setup.
Best For: Shooters who want an adjustable, universal spacer for dialing in stock length on a rifle or shotgun.
Pros:
- Available in 1/8″, 1/4″, and 1/2″ thicknesses for precise fit adjustments
- Universal grind-to-fit design works with many shotgun and rifle stocks
- Lightweight plastic polymer is easy to shape, sand, and finish
- Made in the USA with layered spacing options for finer tuning
Cons:
- Requires fitting and finishing for the cleanest install
- Not a plug-and-play option if you want an instant, no-tools upgrade
For shooters who want a flexible, affordable way to improve fit, these rifle stock spacers do the job well. The main advantage is adjustability: you can start small, stack spacers as needed, and shape the part to match your stock for a more personalized result.
Best for Crickett Fit – Keystone Crickett Stock Spacer Kit
If you need rifle stock spacers to fine-tune a youth Crickett rifle’s length of pull, this Keystone kit is a simple, purpose-built solution. It lets the stock grow with the shooter instead of forcing an early upgrade, with easy polymer spacers and included screws for either a small or larger adjustment.
Best For: Crickett owners who want a factory-style way to extend length of pull as a young shooter grows.
Pros:
- Made specifically for Keystone Sporting Arms Crickett rifles
- Includes two spacer options for 0.75″ or 1.5″ LOP increases
- Comes with both short and long cap head screws for installation
- Lightweight polymer construction keeps the setup simple
Cons:
- Only fits Crickett-compatible stocks, not universal rifles
- Adjustment range is limited to two preset spacer configurations
As rifle stock spacers go, this kit is a practical, no-frills choice if you want an easy way to match the stock to a growing shooter. It won’t do anything fancy, but it does the core job well: improve fit and comfort without replacing the rifle.
Best for Easy Ring Conversion – 30mm to 1" Scope Ring Reducer Shims
If you need a simple way to adapt oversized rings, these rifle stock spacers-style reducer inserts are a practical, low-cost fix. They let 30mm rings hold 1″ accessories securely, making them useful for scopes, lasers, flashlights, and similar gear without buying all-new mounts.
Best For: Shooters who want a quick, lightweight adapter for converting 30mm rings to 1″ equipment.
Pros:
- Fits 30mm rings and reduces them to 1″ diameter
- Two-piece split design makes installation and removal easy
- Lightweight polymer construction is easy to carry
- Includes 4 sets for multiple mounts or backups
Cons:
- Only works for 30mm-to-1″ conversion, not other sizes
- Polymer build may not suit users wanting metal inserts
This is a straightforward choice if you want rifle stock spacers-style versatility in a compact adapter, especially when you need to reuse existing rings instead of replacing hardware. It is most appealing for practical setups where simple fitment matters more than premium construction.
Best for Custom Length of Pull – KICK-EEZ Grind-to-Fit Stock Spacer
If you need a simple way to fine-tune fit, KICK-EEZ rifle stock spacers are a practical add-on for increasing length of pull without replacing the stock. The oversized grind-to-fit design makes it easy to shape for a cleaner install on many shotgun and rifle setups.
Best For: Shooters who want an adjustable, American-made spacer to dial in shoulder fit, comfort, and control.
Pros:
- Helps increase length of pull for a more comfortable stock fit
- Universal grind-to-fit design works with many rifles and shotguns
- Available in multiple thicknesses for more precise adjustment
- Made in the USA with lightweight, easy-to-machine polymer
Cons:
- Requires fitting and shaping for the cleanest installation
- May be more adjustment than casual users need
For shooters comparing rifle stock spacers, this KICK-EEZ option stands out because it balances flexibility, durability, and easy customization. It is a smart pick if you want a spacer that can be layered or trimmed to get the stock fit just right.
Best 30mm-to-1" Adapter – 6 Sets 19mm Scope Ring Reducer
If you need a simple way to fit a 1″ tube into 30mm rings, these rifle stock spacers-style reducer inserts are a practical, low-cost fix. They’re lightweight polymer shims with a split design, so they’re easy to install, remove, and keep on hand for swapping optics or accessories.
Best For: Shooters who want an inexpensive 30mm-to-1″ reducer set for scopes, lasers, or flashlights.
Pros:
- Comes as 6 sets, so you can outfit multiple mounts or keep spares
- Split design makes installation and removal straightforward
- Light polymer construction keeps added bulk and weight low
- 19mm width gives solid contact for common 1″ accessory tubes
Cons:
- Plastic construction won’t feel as rigid as metal inserts
- Only works for 30mm rings converting down to 1″
For basic fitment and quick setup, this kit covers the essentials without overcomplicating things. If you’re shopping for rifle stock spacers or reducer inserts to bridge tube size differences, it’s a straightforward value pick.
Best with Extra Features – KICK-EEZ Universal Stock Spacer
If you need a simple way to fine-tune length of pull, these rifle stock spacers are a practical shop-friendly upgrade. KICK-EEZ makes them oversized and grind-to-fit, so you can dial in stock fit for better comfort, control, and shoulder placement without replacing the whole buttstock.
Best For: Shooters who want a customizable, made-in-USA spacer for adjusting stock fit on a rifle or shotgun.
Pros:
- Available in multiple thicknesses for precise length-of-pull tuning
- Oversized, grind-to-fit design works with many rifle and shotgun stocks
- Lightweight polymer is easy to sand and shape for a clean custom fit
- Made in the USA by a family-owned company
Cons:
- Requires fitting and finishing for the best results
- Not a plug-and-play option if you want instant installation
For buyers who care about fit more than flash, these rifle stock spacers are a straightforward way to improve shoulder position and overall shooting comfort. The adjustable thickness options make them useful for both single- and layered-spacing setups.
Best Heavy-Duty Pick – KICK-EEZ Universal Grind-to-Fit Stock Spacer
If you need a simple way to fine-tune length of pull, these rifle stock spacers make it easier to dial in comfort and shoulder placement without replacing the whole stock. The oversized, grind-to-fit design is made to adapt to a wide range of shotgun and rifle setups.
Best For: Shooters who want an adjustable, American-made spacer for improving stock fit on rifles or shotguns.
Pros:
- Available in 1/8″, 1/4″, and 1/2″ thicknesses for precise length-of-pull adjustments
- Universal grind-to-fit design works with most shotgun and rifle stocks
- Lightweight polymer is easy to sand, shape, and finish cleanly
- Made in the USA by a family-owned brand
Cons:
- Requires fitting and finishing for the best results
- May not be ideal if you want a drop-in, no-tools install
For shooters who want a flexible fit solution, these rifle stock spacers offer a practical way to add length of pull and improve consistency. The modular thickness options make them especially useful when one-size-fits-all stocks feel slightly off.
Best Simple Pick – KICK-EEZ Universal Stock Spacer
If you need an easy way to fine-tune length of pull, these rifle stock spacers are a simple upgrade. KICK-EEZ makes them oversized and grind-to-fit, so they can be shaped to match your stock and help improve comfort, shoulder placement, and control.
Best For: Shooters who want a universal, customizable spacer for adjusting stock fit on a shotgun or rifle.
Pros:
- Adjusts length of pull for a more comfortable, consistent fit
- Oversized universal design works with many rifle and shotgun stocks
- Easy to grind, sand, and customize for a clean finish
- Available in multiple thicknesses for layered adjustment
Cons:
- Requires fitting and finishing before installation
- May not be ideal if you want a drop-in, no-modification solution
For shooters comparing rifle stock spacers, this KICK-EEZ option stands out for its universal fit and practical adjustability. It is a smart choice when you want a tailored stock setup without committing to a permanent, one-size-fits-all spacer.
How We Picked the Best Rifle Stock Spacers
We focused on Rifle Stock Spacers that are practical, easy to install, and suited to real-world use. The best options in this category should help you fine-tune length of pull without introducing unnecessary complexity. We also looked at material quality, compatibility, grind-to-fit versatility, and whether the spacer is intended for a standard rifle stock or a more specialized setup.
Quick Comparison
Before choosing, confirm whether you need a true stock spacer for adding length of pull, a model made for a specific youth stock or factory system, or a ring reducer accessory that solves a different fit problem entirely. Some products in this roundup are universal spacers, while others are built for specific stocks or related mounting applications.
Key Buying Factors for Rifle Stock Spacers
Length of Pull Adjustment
Start with how much extra length you need. Small changes can dramatically affect comfort, cheek weld, and trigger reach, so measure carefully before buying.
Compatibility
Check whether the spacer fits your rifle brand, stock pattern, or recoil pad setup. Universal Rifle Stock Spacers offer flexibility, but dedicated kits may provide a cleaner fit on certain models.
Material and Durability
Look for materials that hold up to repeated use, weather exposure, and recoil. A good spacer should stay stable and maintain its shape over time.
Install and Fit
Some spacers are ready to install, while others are grind-to-fit for a custom finish. If you want a seamless look and precise alignment, that extra fitting step can be worth it.
Who Should Buy Which Rifle Stock Spacers?
Shooters needing a small comfort upgrade or a better shoulder fit will usually do well with universal Rifle Stock Spacers. Youth and smaller-framed shooters may benefit from stock-specific spacer kits designed to refine fit as they grow. If you are outfitting a specialized platform, choose the spacer made for that exact system rather than a general-purpose option.
For most buyers, the best choice is the one that matches your stock, your desired length increase, and how much hands-on fitting you are willing to do. Measure first, confirm compatibility, and prioritize a secure, durable fit over the biggest size increase.