MAGNUM AIRPOWER LLC is a registered trademark. Claim is made to the exclusive right to use AIRPOWER apart from the mark.

You must be 18 years or older to purchase guns and parts.

All parts and guns are well packaged and safe delivery is guaranteed. If there are any problems on our part or due to the carrier we will take responsibility and correct the issue as quickly as possible. All shipments will include tracking.

Returns will be accepted so long as the circumstances are reasonable. We reserve the right to determine what is reasonable. To request a return use the email address on the CONTACT page. The buyer pays return shipping and the original shipping cost will be deducted from your refund. Items must be returned in the same condition they were received or additional deductions may be withheld.

By federal law (posted below) no state or local government can prohibit the sale of airguns but other restrictions can be imposed. It's YOUR responsibility to abide by the laws in your area. If you buy a gun or the parts to build one and then find it's restricted or unlawful that's YOUR problem. It's legal for us to ship parts and airguns to any location in the US and all US territories but may not be legal for YOU to possess them. We reserve the right to refuse shipping of complete airguns to specific locations.

The following summary contains sections of federal law that pertain to the sale of airguns. It explains that traditional pellet guns, BB guns and paintball guns are not considered to be replica, imitation or look-alike firearms. They are not required to have markings indicating so. No state or local government can require such marks or prohibit the sale of these guns. This law starts out by specifying that toy guns, which includes airsoft, are required to have special markings. We left subsections out that were irrelevant to pellet guns and highlighted in blue the ones that specifically pertain to them.

15 U.S.C. 
United States Code,  2010 Edition
Sec. 5001 - Penalties for entering into commerce of imitation firearms

(a) Acts prohibited

It shall be unlawful for any person to manufacture, enter into commerce, ship, transport, or receive any toy, look-alike, or imitation firearm unless such firearm contains, or has affixed to it, a marking approved by the Secretary of Commerce, as provided in subsection (b) of this section.

​(c) “Look-alike firearm” defined

For purposes of this section, the term “look-alike firearm” means any imitation of any original firearm which was manufactured, designed, and produced since 1898, including and limited to toy guns, water guns, replica nonguns, and air-soft guns firing nonmetallic projectiles.
Such term does not include any look-alike, nonfiring, collector replica of an antique firearm developed prior to 1898, or traditional B–B, paint-ball, or pellet-firing air guns that expel a projectile through the force of air pressure.

​(g) Preemption of State or local laws or ordinances; exceptions

The provisions of this section shall supersede any provision of State or local laws or ordinances which provide for markings or identification inconsistent with provisions of this section provided that no State shall—

(ii) prohibit the sale (other than prohibiting the sale to minors) of traditional B–B, paint ball, or pellet-firing air guns that expel a projectile through the force of air pressure.

(Pub. L. 100–615, §4, Nov. 5, 1988, 102 Stat. 3190.)

April 5, 2021


A new degassing conversion kit is now listed that converts all versions of our Magnum Power Adjuster to double as a degassing tool. There is complete degassing Magnum Adjuster for the Marauder Pistol, Fortitude, 1701P and 1720T models listed also. Complete adjusters will be available soon for other models and in more finish options, we're waiting for parts to be anodized. Check out the conversion kit here CLICK TO VIEW and the complete adjusters for Marauder Pistol, Fortitude, 1701P and 1720T here CLICK TO VIEW.



These fit our custom fill nipples and every other brand we are aware of including the cheap import fill nipples most companies are using these days. If you're having issues with your connector, this is the fix.


Please read our TUBE DEFECTS page in the TECHNICAL INFO link above for details about 22XX tubes that may not be safe for bulk-fill, PCP or HPA conversion.


Our corporate registration has been ammended, our business name is now Magnum Gunworks, LLC. Magnum Airpower and Magnum Firepower are now divisions of Magnum Gunworks, LLC. Magnum Firepower will eventually have a category in our online store if all goes as planned.

​​Magnum Airpower is the world leader in custom high-performance parts for Crosman & Benjamin airguns. We specialize in 13XX, 22XX and specific PCP models. 13XX includes Crosman 1377, 1322, 1300KT and related models like the 2289G Backpacker. 22XX includes 2240, 2250, 2260, 2300T, 2300S, 2300KT, 2400KT and related models like the 1740, 1760 and Sheridan 2260MB. For PCP the focus is on models that evolved from 22XX like Discovery, Maximus, Marauder Pistol, 1720T, 1701P and Fortitude. These are the most popular airguns in the world for customization.


​Copyright © 2015 - 2021 Magnum Gunworks, LLC ™. All rights reserved.


World-wide shipping options available at checkout. Complete airguns, stocks, pistol trigger groups, sights and scopes will not be shipped outside the US and US territories. Some US states and cities are also excluded from shipping, if airguns are considered to be firearms in your state or city we will not ship complete airguns to you. 


PayPal is the only payment method accepted. You don't need a PayPal account to pay by credit or debit card, you can use PayPal and checkout as a guest.