Description
The ATI Shotforce HRN4100 takes the classic H&R and New England single-shot and gives it a modern, adjustable makeover. This package pairs a six-position collapsible buttstock with a matching pistol grip and a ribbed AR-style forend, all patterned after the AR-15/M4 platform. It fits most H&R/NEF single-shot 12, 16, and 20 gauge shotguns along with .410 bore and various single-shot rifles like the Handi, Topper, and Ultra. Note that it does not work with the H&R Pardner Pump or youth model firearms, so check what you've got before ordering.
Dialing In the Shotforce HRN4100 Fit
The six-position stock adjusts the length of pull from 10-3/4 inches out to 14-3/4 inches, which is a huge deal if more than one person shoots the gun. You can collapse it down for a younger shooter or somebody in heavy hunting layers, then run it all the way out for a taller adult. That same collapsibility keeps the whole package short for transport and easy carry in the truck or the blind.
Grip, Forend, and Build Quality
The pistol grip is textured for a no-slip hold, and the ribbed forend gives you a solid, wide platform up front that many owners say feels noticeably chunkier and more comfortable than the skinny factory piece. Everything is molded from DuPont extreme-temperature glass-reinforced polymer, so it shrugs off cold mornings and hot afternoons without getting brittle or mushy. There's a swivel stud up front for a sling or bipod, and it's backed by ATI's limited lifetime warranty. It's made in the USA, too.
Getting the HRN4100 on Your Gun
Installation is straightforward for most folks and comes with all the mounting hardware plus instructions. You'll remove the original stock and forend, align the grip and tube to the receiver, and tighten it down with the provided bolt and a socket wrench. Some minor fitting may be needed depending on your exact firearm, but plenty of owners report having it done in just a few minutes with basic tools.
Key Specifications
- Manufacturer: ATI Outdoors (Advanced Technology)
- Manufacturer Part Number: HRN4100
- UPC: 758152541000
- Model: Shotforce
- Product Type: Stock and Forend Package
- Color: Black
- Material: DuPont Extreme Temperature Glass Reinforced Polymer
- Stock Style: Six-Position Adjustable Pistol Grip
- Length of Pull: 10.75 in to 14.75 in
- Sling Attachment: Front Swivel Stud
- Fits: Most H&R/NEF single-shot 12, 16, 20 Gauge, .410, and single-shot rifles
- Not Compatible With: H&R Pardner Pump and youth model firearms
- Warranty: Limited Lifetime Warranty
- Country of Origin: Made in the USA
What’s Included
- Six-position adjustable Shotforce buttstock
- Pistol grip and tube assembly
- Ribbed AR-style forend
- Mounting hardware
- Installation instructions
Frequently Asked Questions
Will the ATI Shotforce HRN4100 fit my single-shot H&R or NEF?
It fits most H&R/NEF single-shot 12, 16, and 20 gauge shotguns, .410 bore, and single-shot rifles like the Handi, Topper, and Ultra. It does not fit the H&R Pardner Pump or youth model firearms. If you're unsure about your exact model, it's worth confirming with ATI before installing.
How much does the length of pull adjust on the Shotforce HRN4100?
The six-position collapsible stock adjusts the length of pull from 10-3/4 inches to 14-3/4 inches. That range lets you set it up short for a younger or smaller shooter and extend it out for a full-size adult. It's a solid pick for a gun that gets passed around the family.
Is the HRN4100 hard to install?
Most people find it a straightforward job that can be done at home in a few minutes. You remove the original stock and forend, align the grip and tube to the receiver, and tighten it with the included bolt and a socket wrench. All mounting hardware and instructions are included, though some minor fitting may be needed depending on your specific firearm.
Can I mount a sling on the Shotforce HRN4100?
Yes, it comes with a front swivel stud that accepts ATI's own sling swivel or any standard swivel. That lets you run a sling or even a bipod up front. It's a handy feature for carrying the gun hands-free in the field.





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