Gunsmithing Tools & Equipment – Compare Prices

Last updated and checked October 29, 2026 · By Nick Hall

The right tools turn a frustrating Saturday into a ten-minute job. You don’t need a machine shop to swap a trigger, mount a scope or build an AR-15 upper, but you do need a short list of purpose-built tools, and using a kitchen hammer and the wrong screwdriver is how slides get scratched and roll pins get bent.

We compare gunsmithing tools from 200+ retailers: armorer’s wrenches, torque wrenches, punches, bench blocks, vise blocks, sight pushers, screwdriver sets and gauges. Filter by type, brand and price. Below the finder, I’ve laid out what to buy first and what it costs, with prices from the maker where they sell direct and from Brownells where they don’t.

Table of Contents

The Core Home Armorer Kit

Tool	What it does	Example and price
Gunsmith screwdriver set	Hollow-ground bits that fit gun screws without camming out	Brownells Magna-Tip 22-bit set, $89.99+
Roll pin punches	Drive roll pins without flaring them	Real Avid Accu-Punch 11-piece, $34.99
Brass punches	Non-marring punches for pins and dovetails	Brownells 20-piece brass set
Gunsmith hammer	Brass and nylon faces that won’t mar a finish	Real Avid Armorer’s Master Hammer, $79.99
Bench block	Supports parts while you drive pins	Real Avid Master Bench Block Pro, $44.99
Inch-pound torque driver	Scope rings, bases, optics, action screws	Wheeler FAT Wrench, $68.99; Real Avid Smart-Torq, $79.99

That kit covers most pistol work and scope mounting. Add the AR-specific tools below if you build or service ARs. Brownells’ hollow-ground bits are the single upgrade I’d make first, because a tapered hardware-store screwdriver is what chews up screw heads. Our older gunsmithing tools you need guide covers more basics.

AR-15 Tools

For AR work, you need an armorer’s wrench, a 1/2-inch drive torque wrench, anti-seize grease and something to hold the upper. Aero Precision’s barrel nut instructions name the first three. Magpul’s armorer’s wrench ($84.95) “can install and remove both stock and pin-style barrel nuts as well as rifle receiver extensions and carbine castle nuts,” takes a 1/2-inch torque wrench and has common torque specs embossed on one side. Real Avid’s Armorer’s Master Wrench is $89.99.

If you’d rather buy it in one case, Wheeler’s Delta Series AR Armorer’s Essentials Kit is $131.99 at Brownells, and Real Avid’s Armorer’s Master Kit for the AR15 lists at $299.99. Our AR-15 parts hub has the parts to go with them.

Reaction Rod or Vise Block?

Barrel work puts a lot of torque through the upper. A reaction rod locks into the barrel extension lugs so the twisting force goes into the steel extension instead of the aluminum receiver; Wheeler says its Delta Series action rod “is designed to reduce stress on the upper receiver during barrel installation and other high-torque tasks.” Wheeler’s rod is $56.99 at Brownells, and Geissele makes a premium version. A clamshell vise block, like Real Avid’s Smart-Fit AR15 block ($44.99), is fine for lighter jobs. For torquing a barrel nut or muzzle device, I use a rod.

AR-15 Barrel Nut Torque

Use the number your barrel nut or upper maker publishes. The commonly cited mil-spec window is 30 to 80 ft-lb, and you turn the nut further inside that window until the gas tube hole lines up. Some makers set tighter limits: Aero Precision lists 50 ft-lb for its M4E1 threaded upper, and caps its BAR barrel nut at 30 to 45 ft-lb, warning that going over 45 “can result in damage to your barrel nut.” Aero also says to torque, loosen and re-torque three times to break in the threads. Magpul’s wrench instructions say to orient the torque wrench at 90 degrees to the wrench so the reading stays accurate.

Scope Ring and Base Torque

Overtightening rings is the classic home-gunsmith mistake, and Real Avid says flatly that it’s “the number one cause of scope damage/failure.” Use the ring maker’s spec, not a number from a forum. Leupold’s STD instructions call for 28 in-lb max on ring screws and 22 in-lb on 6-48 base screws or 28 in-lb on 8-40. An inch-pound torque driver is the only way to hit those: Wheeler’s FAT Wrench covers 10 to 65 in-lb in 1 in-lb steps. More in our best scope rings and mounts guide and the gun optics hub.

Sight Pushers

For dovetail sights on a slide, a bench sight pusher is the safe way to do it, because it clamps the slide and pushes the sight in a straight line. Wheeler’s Armorers Handgun Sight Tool ($164.99 at Brownells) uses four independent clamps and is reversible for Glock slides. The MGW Sight Pro ($279 at Brownells) is the shop-grade tool and ships with a 30-degree pusher block for Glock and HK sights. If you only change sights once, a brass punch and a light hammer will do it; go slowly and protect the finish.

Headspace Gauges

Forster’s instructions explain the three gauges, shortest to longest. A rifle that closes on GO will accept ammunition made to SAAMI maximum specs. NO-GO marks the maximum headspace Forster recommends for gunsmiths chambering new bolt-action rifles. If the bolt closes on FIELD, the chamber is “dangerously close to, or longer than, SAAMI-specified maximum,” and Forster says: “Do not fire any rifle that will close on the FIELD gage.”

A home builder checking a new AR barrel needs the GO and NO-GO pair for that cartridge. Never force the bolt closed on a gauge, and Forster recommends checking headspace every thousand rounds on a rifle that sees heavy use.

Glock Armorer Tools and Training

Glock work needs fewer tools than an AR: a punch for the pins, a slide plate tool and a good bench block cover most of it, and Real Avid sells a Master Collection for Glock ($189.95) that bundles them. If you want the real knowledge behind it, Glock’s own Armorer’s Course costs $300 for one 8-hour day and issues a 3-year certificate, and current GSSF members can attend alongside police and dealers. There’s a separate course for Gen5, V and Gen6 pistols. Our Glock parts hub covers what fits each generation.

Do You Need an FFL to Gunsmith?

Not to work on your own guns. You need a federal license once you work on other people’s guns as a business. The federal regulation treats anyone “engaged in the business of repairing firearms or of making or fitting special barrels, stocks, or trigger mechanisms to firearms” as a dealer, and that includes part-time work at home. Someone who “occasionally repairs or customizes firearms” is outside that definition. Making frames, receivers or complete guns for sale, including by finishing or applying coatings, needs a manufacturer license. ATF proposed rolling back parts of its 2024 dealer rule in May 2026, but that’s still a proposal, and state and local rules can add more.

80 Percent Lowers and Frame Kits

Under ATF’s 2022 rule, a partially complete frame or receiver that “may readily be completed” counts as a frame or receiver, so it needs a serial number and a dealer transfer with a background check. On March 26, 2025, in Bondi v. VanDerStok, the Supreme Court ruled 7 to 2 that the rule “is not facially inconsistent” with the Gun Control Act. Blanks that haven’t reached the point of being clearly identifiable as a receiver are still outside it. As of October 2026, ATF hasn’t proposed changing that definition. Some states add their own restrictions; see our coverage of the Delaware ghost gun case and the Ninth Circuit ruling.

Thread Locker and Anti-Seize

Two small tubes do more to prevent problems than any tool on this page. Anti-seize goes on threads that need to come apart later under high torque: Aero Precision lists it with the armorer’s wrench and torque wrench for barrel nut installs, because aluminum receiver threads and a steel nut can gall without it. Blue thread locker goes on small screws that vibrate loose, like optic mount screws and some gas block set screws, and comes off with hand tools.

Don’t mix them up, and don’t use red thread locker on anything you’ll ever want to remove without heat. On scope rings, follow the ring maker: Leupold’s torque specs assume clean, dry screws, so adding thread locker changes the clamping force you actually get.

Setting Up Your Bench

A solid bench and a good vise matter as much as the tools. Bolt a bench vise with padded or polymer jaws to a sturdy surface, so you can clamp a vise block or reaction rod without the whole table walking. Good light is next: a bright LED over the bench and a magnifier lamp save you from losing detents and misreading markings. Add a magnetic parts tray, a mat that catches springs, and a small fire extinguisher if you use solvents near the bench.

Keep a notebook too. I write down every torque value, thread locker spot and part number I change on each gun, with the date. When something loosens or breaks a year later, that page tells you exactly what you did.

My Shopping Order

If you’re building a bench from scratch, buy in this order and you’ll never be stuck mid-job. First, a hollow-ground screwdriver set and an inch-pound torque driver, because those handle scopes, optics and most pistol work. Second, roll pin punches, a brass punch set, a gunsmith hammer and a bench block. Third, if you own an AR, the armorer’s wrench, a 1/2-inch torque wrench and a reaction rod or vise block. Last, the specialty tools you’ll use less: a sight pusher, headspace gauges and caliber-specific fixtures.

Keep a tub of anti-seize and some blue thread locker on the bench too, along with a parts tray so nothing small rolls away. Most home gunsmithing disasters start with a lost detent spring.

Facts and Figures

• Headspace: do not fire a rifle that closes on the FIELD gauge, per Forster
• Gunsmithing as a business requires a federal dealer license, per 27 CFR 478.11
• VanDerStok: Supreme Court upheld the 2022 frame and receiver rule 7 to 2 on March 26, 2025
• Glock Armorer’s Course: $300, one day, 3-year certificate
• Magpul armorer’s wrench: $84.95 with torque specs embossed on the tool

Related Guides

• Gunsmithing tools you need
• AR-15 parts
• Glock parts
• Best scope rings and mounts
• Gun cleaning supplies
• Gun optics and sights

Frequently Asked Questions