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Crosman/QB Valve Stem Rebuild Starter
Crosman/QB Valve Stem Rebuild Starter
Our Price: $199.00
3 in stock!

Valve Stem Rebuild components for Professional Rebuild of the Crosman & QB Exhaust valve Assemblies. Can fit many other models and other makers. This kit gives the DIY a good variety of components so he/she can rebuild all the Old School CO2 Crosman and modern QB & TF guns. Made in USA by Mac1. A propane torch can be very helpful to get the brass head to separate from the steel stem. A .2" hole in a steel plate will allow you to drive the stem out of the head when properly supported. The seal fits in the brass head and you use a 1/8" hole in a anvil to drive the head and seal onto the stem. It is a good policy to use a permanent thread locker in the brass head for insurance. Once the head is pressed together it can be trued and faced off to ready it for use. Heat the entire gun up to toasty when you first charge it so the seals will be supple and the pressure will be high. Making sure there is no damage to the valve seat where the seal sits is very important as the Mac1 seals are hard enough so you can leave the gun charged all the time. Getting it to seal initially can be impossible if there is any seat irregularity. Polishing the seat is often required to remove any scratches or abuse. If you use the parts that make for the most reliable repairs imaginable a DIY project can be the best investment you ever made in an airgun. Quality parts last. Your time is wasted when you use inferior parts.
Those that don't have a lathe to cut the seal after install need to spin the head in a driil motor with seal fitted to brass cup prior to assembly to get a reasonable finish on the exhaust valve seal so it will work. Once assembled the DIY needs to be certain the stem runs true and chucking the head and spinning assembly will show you if it got bent on assembly. The stem needs to run true to the head and the thru hole needs to be true to the seat or hard seals won't make adequate contact.
Does not include the steel stem except in the Case of the 6xMKI exhaust valve assemblies. Brass head and seal only on the remainder of the components. MKI early steel stems can be S&W 78 stems if you shorten a small amount (longer tail guides the spring).
This Kit includes
15x Exhaust valve seals(13 small and 2x622)
6x MKI Complete Exhaust Valve w/return spring
6x MKI/S&W/Etc Small head
2x 600 valve head
4x 160/150/180/400 head
2X 622 heads
These components should be able to rebuild over 20 CO2 exhaust valves for under $10 each. For hard core DIYs or Pro Tuners. If you have the skills don't let them go to waste using inferior components.
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LD MKI/AVigil Shoulder Stock
LD MKI/AVigil Shoulder Stock
Our Price: $195.00
3 in stock!

This is the Adam Vigil Shoulder Stock for the legendary LD MKI pistol. The shoulder stock attaches to a Quick Release Picitinny Scope mount. The Piercing cap fits a 30MM size Quick Release mount while the Bulk adapter fits a 1". Specify which you want in the option.
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Lothar Walther Polygon 16MM .25 Cal Blued Barrel with Choke
Lothar Walther Polygon 16MM .25 Cal Blued Barrel with Choke
Our Price: $150.00
(Out of Stock)

Lothar Walther barrels are the typical Hi-End manufacturers choice in
Quality barrels for Airguns. We carry 16MM choked blanks and use them on
the majority of the guns we manufacturer. Polygon LW's are very popular as they give the pellet less aerodynamic drag compared to conventional rifling and the result is better BC and power at Impact. This barrel has been ground to a 32 micro-finish at .628"(16MM) and
black oxide & oiled to make it nearly ready to bolt up. Only rear
profile, port, lead and crown would need to be done.
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Lothar Walther 16MM .20 Barrel Blued with Choke
Lothar Walther 16MM .20 Barrel Blued with Choke
Our Price: $150.00
1 in stock!

Lothar Walther barrels are the typical Hi-End manufacturers choice in
Quality barrels for Airguns. We carry 16MM choked blanks and use them on
the majority of the guns we manufacturer. This barrel has been ground to a 32 micro-finish at .628"(16MM) and
black oxide & oiled to make it nearly ready to bolt up. Only rear
profile, port, lead and crown would need to be done.
more info
Lothar Walther 16MM .25 Barrel Blued with Choke
Lothar Walther 16MM .25 Barrel Blued with Choke
Our Price: $150.00
2 in stock!

Lothar Walther barrels are the typical Hi-End manufacturers choice in Quality barrels for Airguns. We carry 16MM choked blanks and use them on the majority of the guns we manufacturer. This barrel has been ground to a 32 micro-finish at .628"(16MM) and black oxide & oiled to make it nearly ready to bolt up. Only rear profile, port, lead and crown would need to be done.
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Lothar Walther 16MM .177 Barrel Blued with Choke
Lothar Walther 16MM .177 Barrel Blued with Choke
Our Price: $150.00
2 in stock!

Lothar Walther barrels are the typical Hi-End manufacturers choice in Quality barrels for Airguns. These are the std LW rifled barrels.We carry 16MM choked blanks and use them on the guns we manufacturer. LW 16 MM barrels are delivered about 5 thou oversize(about .633"). They have a rust inhibitor coating that soaks into the material a few thou.If the few thou is not removed the barrel cannot be blued and come out black. The rust inhibitor will make the barrel come from blacl oxide and it will be purple. We have centerless ground these to .628"(16MM) with a 32 microfinish and black oxided the barrels so they are ready to cut the profile for the gun it is fitting, fit a port, leade, crown etc and it already looks fantastic.
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22 CI Regulated PSI HPA Tank
22 CI Regulated PSI HPA Tank
Our Price: $134.00
17 in stock!

PSI regulated HPA air tank 3000 psi max input PSI/22CI. Foster type male fill nipple. Tank pressure available in 1000, 1200, 1400, 1600 & 1800 PSI output. Higher than 1000 PSI Output is a $25 premium. All the Reg pistons get upgraded to 90 durometer Mil Spec orings to extend service intervals. Catalina Cylinder with Ninja Reg. Made in USA. Orings Upgraded throughout w/ Mil Spec 90's, Regulator output pressure is verified, pressure tested and assembled by Mac1.
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Lothar Walther Polygonal Slow twist 16mm .177 with Choke
Lothar Walther Polygonal Slow twist 16mm .177 with Choke
Our Price: $130.00
(Out of Stock)

This is a 1 turn in 36" Polygon Barrel with Choke. They call it slow poly.
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Lothar Walther Polygon 16MM .25 Cal Barrel with Choke
Lothar Walther Polygon 16MM .25 Cal Barrel with Choke
Our Price: $130.00
4 in stock!

Lothar Walther barrels are the typical Hi-End manufacturers choice in Quality barrels for Airguns. We carry 16MM choked blanks and use them on the majority of the guns we manufacturer. Polygon LW's are very popular as they give the pellet less aerodynamic drag compared to conventional rifling and the result is better BC and power at Impact.
more info
Lothar Walther 16mm .22 Polygon rifled with Choke
Lothar Walther 16mm .22 Polygon rifled with Choke
Our Price: $130.00
2 in stock!

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