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Mac1 Billet Plug/Lever & Adj Piston KIT
Our Price: $99.00
13 in stock!

Replacement Solid Steel (Billet)Pump Lever with blued finish. Includes Mac1 Round rivet, hard bush for primary pivot & felt bumper. You can option for longer (EXTENDED) lever for $10 more. These are the components used in the Custom Mac1 Steroids we do. Kit Includes the Billet Lever, Link, Adjustable Piston and Steel front plug with all Mac1 hardware to put the front end together. The Standard lever geometry fits both the Older rocker safety guns as well as Benjamin late and early as it has both sets of pin mounting points. Extended Billet levers fit Late model guns made since 1990 and all Benjamin Rifles.
Made in USA by Mac1.
Gen II Brake for MKI & MKII Crosman
Our Price: $75.00
19 in stock!

Mac1 designed and manufactured brake made specifically for MKI & MKII AirPistols. Designed with a two piece arrangement so the pellet path can align with the brake exit end. The back end is machined so it screws directly on the MKI or MKII barrel end threads (takes the place of the barrel nut). No modifications are required to the gun and it can be removed anytime to go back to factory specifications.
Benjamin Sheridan Gen II Brake
Our Price: $75.00
25 in stock!

Mac1 designed and manufactured brake for Benjamin & Sheridan Pump Rifles. This will fit all years .20 or .22 cal and any .177 Cal after 1985. Different barrel lengths require plastic seal(s) and or o-ring provided to fit and seal(two plastic spacers and an o-ring are supplied). Front sight will need to be removed or heated and moved aft to clear the brake. All Racine Benjamin and all Sheridan rifles will be able to use the Williams peep or open sights still if the front sight is moved back.
This is for the more handy and is primarily made for Pro use. Fitment is via two part epoxy. The spacer glues to the barrel and tube(apply glue to barrel and tube only) for about 2" at the front of the gun so it has plenty of contact area and support. Installer will need to dry fit with the plastic seal(s) and/or o-ring to accommodate the various barrel lengths that were made. The spacer that glues to the barrel must not bottom on the front plug. It must bottom on the plastic seal or o-ring combination so it seals up and no glue can get into the barrel at the joint. It must be clamped down as well as pushed aft to make a seal while curing. The Brake glues onto the spacer with the glue being only applied on the spacer OD. Wipe off the excess epoxy and make sure there are no problems with the alignment before the glue cures. This should only be done to a gun that has had a recent front end freshen up as the Brake will need to be removed if there is any need to service the front end. Heat can allow the removal of the brake at any time.
Gen II Brake
Our Price: $45.00
47 in stock!

Mac1 designed and manufactured brake for AirRifles & AirPistols. Designed with a two piece arrangement so the pellet path can align with the brake front end. Various spacers are available so the Brake can be fitted to guns that don't have 15 or 16MM diameter barrels. The Brake needs to be heated up considerably to expand enough to be fitted to 16MM barrels and then when it cools it is not removable. All the spacers available are made to be used with the 16MM Brake. 15MM brakes will need to be heated up to slip onto 15MM barrel stock. This allows the easy indexing of barrels without unsightly grub screws sticking out. Spacers are available for .435" barrels to go on barrel end, discovery barrels which need to be spaced forward a few inches and the Benjamin/Sheridan Pump guns. These parts are made for pro use and talented hobbeists. The Sheridan and Benjamin Spacers glue on and the rest of the spacers are interference fit. They go on with heat applied and then pressed or hammered on. Once on the barrel the spacers are machined so the interference to the brake is only a .001" difference so the brake can be heated and pressed onto the spacer.
I have the 15 & 16MM brakes made up and when a barrel is smaller than the sizes we have I use a spacer made to fit a .435"/11MM barrel and open that up to whatever diameter the customer needs. If the barrel falls between 15 and 16 I machine the 15MM out. If it is above 16MM I machine out the 16MM. I can fit barrels from 11MM to 19MM. I normally cut brakes ID a .001" smaller than barrel OD and heat them to install. I can cut them a .001" bigger and you can glue on. Custom versions are going to be $25 Extra. You need to pout in your order notes the Dimension of chpoice for the ID or the Brke that fits approximately 2" on the end of the barrel when slid all the way on.
Mac1 Steroid Billet Lever Arm
Our Price: $40.00
17 in stock!

Replacement Solid Steel (Billet)Pump Arm with blued finish. Includes Mac1 Round rivet, hard bush for primary pivot & felt bumper. You can option for longer (EXTENDED) lever for $10 more and Lever link is $15. These are the components used in the Custom Mac1 Steroids we do. YOU MUST HAVE AN ADJUSTABLE PISTON when fitting Billet Levers. The Standard lever geometry fits both the Older rocker safety guns as well as Benjamins late and early as it has both sets of pin mounting points. Extended Billet levers fit Late model guns made since 1990 and all Benjamin Rifles.
Made in USA by Mac1.
Williams Peep 5DSH
Our Price: $40.00
8 in stock!

Williams peep is a nice upgrade for any Benjamin after '85 or all Sheridans. The rifle needs to be drilled and tapped for peep.to be mounted if the gun does not already have pre-drilled holes on the Right side of the breech.
Mac1 Steroid Adjustable Piston
Our Price: $35.00
21 in stock!

Replacement Piston for Benjamin & Sheridan Rifles. Includes Stainless Steel Piston Head and Jam nut with Factory Pump cup. These are the components used in the Custom Mac1 Steroids we do. YOU MUST HAVE AN ADJUSTABLE PISTON when fitting Billet Levers.
Made in USA by Mac1.
Steroid Front Plug
Our Price: $25.00
18 in stock!

Blued steel front plug compliments the blued steel billet lever on any Steroid Billet Benjy or Dan. Doesn't fit 342/347 and Earlier Benjies. Available to add a bit of bling, structure and muzzle protection to late (post '88), Benjamin or any year Sheridan. Made in USA by Mac1. This is standard now on all Billet Steroid Guns sent in with an aluminum front plug. The Factory aluminum front plug will erode after a few pin drivings and the Steel front plug is the answer to have a front plug that will last for decades. I recommend this part to be part of ANY Steroid Job to a Sheridan or Benjamin Rifle so that multiple front pin driving will not result in Spring pins that start to slip out. When you invest in a Steroid this is the front plug you want, so in 20 years you can install a fresh spring pin, pump cup, link pin and lever rivet and be confident the Front pins will stay put when you reinstall. It is a faithful replica of the Factory Die cast front Plug or Chromed Brass Plug from the 80's & 90's but in Blued Steel to match the Mac1 Billet levers. No Steroid is complete without this Steel Front Plug.
Benjamin/Sheridan Pump Cup, Pivot & Rivet Kit
Our Price: $15.00
25 in stock!

Call it the front end Freshen Kit. Available in Round (early)or Keyed Rivet(late/Post'76). This is what you need if the Pump group of your Post '78 Benjy or ANY Sheridan has been neglected and you need to put all soft and hard goods in place to get a fresh start. I'd get the Secret Sauce also. Lubed they will last forever. Make sure you mop all the goo out of the front end/inside tube packed against the valve face. On Pre-'62's often the lever link bushing is toast. It wasn't a very robust design and most failed. You will not see it till you take the rivet out. The lever needs to be drilled and beveled 1/4" on one side and a newer round rivet fitted on the earlier models. Early guns had a bad rivet arrangement that needs to be upgraded to 1/4" rivet on link rather than bushing between link and rivet. A rock hard cup indicates much heat. That means no Lube which translates to rusty valve springs and fouled exhaust from rusty muck.
Factory round rivets tended to turn if they were not bucked properly and an oversize Round rivet is what Mac1 sells so the rivet will fill the bevel and engage the lever adequately to eliminate rivet spin. The round rivet should be primarily bucked from the large side while the Mac1 Keyed rivet should be first bucked on the Keyed side.
Includes Pump Cup, lever link rivet, felt bumper, link pivot, Secret Sauce lube & spring pin. If the Pins don't drive firmly into front plug consider getting the Steroid Steel Front Plug. If you have early non-rebuildable Piston, get the Stainless Steel Piston head as well.
There is an Option for Pre-78 Benjamin as well which will service the early guns with the Benjamin cup that pops over a 1/4" center shaft.

Steroid Stainless Steel Piston Head
Our Price: $15.00
37 in stock!

Mac1 made in USA. This 300 series Stainless Steel Solid Head is non-magnetic and rust proof. The best part for upgrading your Sheridan piston for strength and adjustability. You need to cut the factory piston head off, thread the rod end to 1/4X28TPI and install the supplied Jam nut. You are piston adjustable and bullet proof. Mac1 Steroid Piston Head includes the Factory Pump Cup. (OAL) Length of adjusted piston is 7.25".