FAQ

The owner’s manual can be found under the Resources and Support tab on our website. Link is below:

Diablo-User-Manual_v2screen.pdf

You can also email info@americanguncraft.com a customer service rep will email you a copy.

Only American Style Primers will work with our pistols. European style primers will not fit.

A” American Standard 209 =.241”-.242”, “E” European Standard .244”-.245” diameter

American made brands include Remington, Winchester, Federal and CCI. European brands include Rio, Fiocchi and Cheedite.

Please check your spam folder for any correspondence from us. Also check the email address you sent to us to make sure it is correct.

Emails are answered within 24 hours M-F, if an email is received on a weekend or holiday it will be answered within 24 hours on the next normal workday.

Check to make sure your email address is correct. We receive countless emails that we cannot respond to because the email address has been typed incorrectly.

We send a cloth storage bag, and a cloth for wiping down and polishing the pistol.

We are not able to give any legal advice on the laws for your state or area concerning the legality of our pistols or concealed carry laws.

We ship USPS priority mail. An adult signature is required for all pistol shipments. Accessories ship no signature required.

We are a small company and ship once a week. In stock merchandise ships in about 7 business days from date of order. Approximate lead times are stated on each product page.

AGC fast load sabot slugsare recommended but Ball, slugs, shot, and rock salt can all be used in our pistols. We recommend .715 ball ammo.

We only ship to the 50 United States. We are not able to export any products outside of the U.S.

Folow instructions below:

Before anything else, ensure your muzzleloader is unloaded.

Remove the breech plugs using a 3/8” thin wall socket

Use a cleaning rod with a tight-fitting bore brush for 12 gauge. Soak a cleaning patch with muzzleloader solvent (formulated for black powder or black powder substitutes) and push it through the bore from breech to muzzle. Hot water and Dawn dish soap work well also. Repeat this process multiple times, using fresh patches each time, until the patches come out clean. You may need to use a copper brush for stubborn fouling.

The breech plug is prone to heavy fouling it can be soaked in muzzle loader solvent. Use a brush or scraper to remove carbon buildup. Ensure the threads are clean for easy reassembly. We recommend a very light coat of lithium type grease be used on the breech plug threads for ease in removal before reassembling the pistol.
Wipe down all external metal surfaces with a clean cloth dampened with solvent or a dedicated gun cleaner.

Once all parts are cleaned, it’s crucial to thoroughly dry everything. Use a clean, dry cloth to wipe down all surfaces. You can also use a hair dryer on a low setting to speed up the drying process. Moisture is the enemy of a muzzleloader.

Apply a light coat of gun oil or a dedicated muzzleloader lubricant to all metal surfaces. This will protect against rust and corrosion. Pay special attention to the bore, breech plug threads.

After reassembly, perform a function check to ensure the firearm is operating correctly. Check the trigger pull, hammer.

Give the entire muzzleloader a final wipe down with a clean cloth to remove any excess oil.

After cleaning the breech plugs may need to be adjusted this can be accomplished by giving them 1/16 of a turn counter- clockwise until you get consistent ignition from your brand of 209 primers.

For 6-inch pistols (Diablo Model) with the standard factory handguard the following models will work:

Diablo Shoulder Rig- left or right

Desperado Drop Leg Left or Right

Diablo Black leather holster

Diablo tan leather holster

If the longer handguard has been installed on the 6-inch Diablo Pistols Desperado Model holsters are needed.

For the 8- and 11-inch pistols (Desperado model)

Desperado Drop Leg Left or Right

Desperado leather holster black

Desperado Leather holster tan.

Shoulder rig holsters will not work with the 8- and 11-inch barreled pistols.

FF black powder, Pyrodex or Powder Pellets such as White Hots in .50 or .54 Cal
A measuring device for loose powder and payload
A ramrod or short ball starter
.209 American Made shotgun primers such as Federal, Winchester, Remington or CCI. European primers are a bit oversized. Cheddite, Rio and Fiocchi brands will not work.
Payload of choice, shot, ball, slugs, or sabots
Overshot wads if shooting shot
Patches if using ball, slugs etc.
Over powder cards if shooting loose powder.
Fiber wads are optional

AGC fast load sabot slug: insert a .50 cal 50 gr. preformed powder pellet into barrel, follow by inserting the AGC fast load sabot slug, place hammer on half cock, then pointing in a safe direction insert 209 primers and carefully close the action.

Loose powder:carefully measure FFG powder and load into the barrel, then insert the over powder (nitro) card next. The nitro card is made of dense cardboard about 1/8th inch thick. It should fit tight in the bore to prevent hot gases from passing through the shot charge.

Start at edge of the wad and then finish it off by pushing it down onto the powder with the ramrod. Seat the wad firmly on the powder. 

The lubed fiber cushion wad is next. (the fiber wad is optional and seldom used)

Measure and pour the desired charge of shot down the barrel.

The over-shot card is last. These are made of light cardboard or heavy paper about 1/16th inch thick. The purpose of the over shot card is to prevent the shot from falling out of the barrel. Push the card down the barrel till it is seated on top of the shot charge. Seat it firmly, but don’t pack it down so hard as to deform the shot pellets. 

With the muzzle pointed in a safe direction place the hammer in the half cock position, break the pistol open and insert .209 American made primers into both breech plugs. 

Pointing the pistol in a safe direction carefully close the action of the pistol. 

As a rule most shotguns will perform very well with an equal volume load. This is easy to accomplish by using the same measure for both shot and powder and not exceeding a total payload weight of 1 ¼ oz

Not to exceed 60 grains of FFG powder and 1 ¼ oz payload

A quick easy way to load the AGC shotgun pistols is by using White Hot powder pellets in .50 cal. 50 gr.  An AGC quick load slug and .209 primers. 

Drop the pellet into the barrel. Ram the slug  over the pellet. Place hammer on half cock, break the pistol open and insert the .209 primers, verify the hammer is on half cock and close the pistol and you are ready to shoot. 

The slug can be rammed down directly onto loose powder, no wads required