Adaptive Tactical Tac-Hammer RM4 — Black Synthetic Adjustable Stock — Magazine Compartments, Removable Barrel Inserts, Stowaway Accessory Rail — Fits Ruger 10/22 (Most Barrel Contours) — 1081039 (UPC: 751103010396)
Turn your Ruger® 10/22® into a modern, mission-ready rimfire platform with the Adaptive Tactical Tac-Hammer RM4 stock. Built from rugged black synthetic polymer, the RM4 blends tool-less length-of-pull adjustability, integrated magazine storage, removable barrel channel inserts (to fit most factory and heavy barrel contours), and a stowaway accessory rail that appears only when you need it. Whether you’re building a precision trainer, a compact field rifle, or a plinking workhorse, the RM4 delivers ergonomic comfort, rock-solid durability, and practical features that elevate your 10/22 without unnecessary weight.
Why Choose the Tac-Hammer RM4 for Your 10/22?
Adjustable, ergonomic fit: Fine-tune length of pull for different shooters, clothing layers, or optics height to achieve a consistent cheek weld and faster sight alignment.
On-board magazine storage: Integrated magazine compartments in the stock keep extra 10/22 mags handy and rattle-free for quick reloads at the range or in the field.
Removable barrel inserts: Swap the barrel channel inserts to fit most barrel contours—from standard sporter to .920” bull profiles—so you can upgrade barrels later without changing stocks.
Stowaway accessory rail: A hidden rail section deploys on demand for bipods, lights, or slings, then tucks away to maintain a sleek, snag-free profile.
Durable black synthetic: Impact- and weather-resistant polymer shrugs off dings, dust, and wet conditions while keeping weight balanced around the receiver.
At a Glance
Model: Tac-Hammer RM4 Adjustable Stock
Color/Material: Black synthetic polymer
Fit: Ruger 10/22 — accommodates most factory and heavy barrel contours via removable inserts
Key Features: Adjustable LOP, magazine compartments, stowaway accessory rail
SKU/Part #: 1081039
UPC: 751103010396
Brand: Adaptive Tactical
Key Features & Benefits
Adjustable Stock Geometry
Multi-position length of pull supports youth and adult shooters alike.
Promotes a natural head position behind irons, red dots, or scopes for reduced neck strain and quicker target acquisition.
Integrated Magazine Compartments
Removable Barrel Channel Inserts
Future-proof your build: Easily switch from a factory sporter barrel to a heavy target barrel without buying a new stock.
Maintains clean lines and proper support for improved consistency and accuracy potential.
Stowaway Accessory Rail
Deploy only when needed: Mount a bipod for prone groups, an accessory light for pests, or a sling adapter—then conceal the rail for a smooth, snag-free carry.
Field-Ready Construction
Non-slip texturing at critical grip points improves control in rain, sweat, or gloves.
Rigid synthetic shell provides durable bedding surfaces while resisting temperature swings and rough handling.
Ideal Use Cases
Training & skill development: Set up a rimfire that mimics your centerfire ergonomics for economical practice.
Hunting & pest control: Carry spare mags onboard and deploy the hidden rail for a bipod when you settle into position.
Target & steel: Adjustable LOP plus heavy-barrel compatibility make precision plinking and small-game zeroing a breeze.
Youth & multi-user rifles: One stock comfortably fits different shooters—no compromises.
Compatibility & Fitment
Fits: Ruger 10/22 standard receivers.
Barrel contours: Works with most factory and heavy barrels using the included removable barrel inserts.
Notes: Some takedown or specialty 10/22 variants may differ; verify your model (receiver style, barrel diameter, and hardware) before installation.
Installation Notes
Drop-in design: Transfer your barreled action and trigger group into the RM4 per the 10/22 manual.
Barrel insert selection: Choose the insert that best matches your barrel profile for proper support and aesthetics.
Function check: With the rifle unloaded, verify safe operation, magazine fitment, and that the barrel is centered without contact (unless your setup requires pressure).
Care & Maintenance
Wipe with a soft cloth and firearm-safe cleaner; avoid harsh solvents not intended for polymers.
Inspect screws and accessory rail hardware after range sessions.
Keep magazine compartments free of debris for reliable seating and retrieval.
Pro Tips for Setup
Cheek weld & optic height: Adjust LOP until your eye naturally aligns with your optic—no neck crane.
Balance matters: Heavy barrels pair well with a compact optic to keep the rifle lively.
Rail discipline: Deploy the stowaway rail only when needed to retain a clean, snag-free silhouette.
SEO Highlights (Quick Scan)
Adaptive Tactical Tac-Hammer RM4 adjustable stock for Ruger 10/22
Black synthetic with magazine compartments
Removable barrel inserts fit most barrel contours (sporter & bull)
Stowaway accessory rail for bipods/lights
1081039, UPC 751103010396
Frequently Asked Questions
Will the RM4 fit my 10/22 with a heavy (.920") barrel?
Yes—use the appropriate removable insert for heavy/target barrels to ensure a clean fit.
Does this stock work with factory sporter barrels?
Absolutely. Swap to the sporter insert for factory profiles and maintain proper support.
How many magazines can the stock hold?
The RM4 includes integrated magazine compartments designed for convenient on-board storage; capacity depends on the specific compartment design and mag size. (Standard 10-round rotary mags are commonly used.)
Is the accessory rail always exposed?
No—the stowaway rail is concealed until you deploy it, keeping the stock sleek and snag-resistant.
Do I need a gunsmith to install it?
Most users can perform a straightforward drop-in swap with basic tools. If you’re unfamiliar with 10/22 disassembly, a gunsmith can help.
Specifications
Brand: Adaptive Tactical
Model: Tac-Hammer RM4
Material/Color: Black synthetic polymer
Adjustability: Multi-position length of pull
Storage: Integrated magazine compartments
Barrel Interface: Removable barrel inserts for most contours
Accessory Interface: Stowaway accessory rail
Platform: Ruger 10/22
SKU / Part #: 1081039
UPC: 751103010396
Safety Notice: Ensure the rifle is unloaded and pointed in a safe direction during installation and adjustments. Confirm proper function before live fire and follow all applicable laws and safe-handling practices.
Meta (for SEO)
Meta Title: Adaptive Tactical Tac-Hammer RM4 — Adjustable Stock for Ruger 10/22, Magazine Storage, Removable Barrel Inserts, Stowaway Rail — 1081039, UPC 751103010396
Meta Description: Upgrade your Ruger 10/22 with the Adaptive Tactical Tac-Hammer RM4. Black synthetic adjustable stock with onboard magazine compartments, removable barrel inserts to fit most barrel contours, and a stowaway accessory rail. SKU 1081039, UPC 751103010396.
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