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Archer Airguns AR Sidelever Breech Kit
Archer Airguns sidelever breech and bolt parts kit for Chinese QB78 family CO2-powered wood and metal airguns.
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Our Price: $36.99

Availability:: Usually Ships in 1 to 2 Business Days


Description Technical Specs

Degree of difficulty: *****
Fits all QB78 family air rifles.

This factory breech kit is from the very rare AR2078B and AR2079B models. It can also be used as an up-grade for the QB78, QB78 Deluxe, QB79, AR2078, AR2078A and AR2079A. Cocking is easier than using the bolt action and it looks very cool and unusual.

Installing using the included high flow breech seal gives approximately 40fps increase in muzzle velocity compared to standard factory guns. A performance bonus!

Available in .177 caliber only. Not compatible with the Archer Airguns XP Tune Kit.

Installation is very similar to the standard breech, just have the cocking arm partially open when locating the cocking and hammer pins in the underside of the bolt.

Average Customer Review: 5 of 5 Total Reviews: 2 Write a review:

  1 of 1 people found the following review helpful:
Nice Addition April 4, 2014
Reviewer: Frank from Adamsville, AL United States  
I've had the side-lever breech kit installed on my about for over a year. I bought it before I got the the qb2078a and all I can say is WOW. It's like night and day the difference the kit will make. You just have to use the kit to really appreciate it.  It's worth it. A little polishing of the bolt along with a little molly and you will never want the bolt action qb again. It make things so simple. Great produce. My next qb project in the upcoming months will be getting this kit also. Thanks Mr. Archer for another great product.

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  2 of 2 people found the following review helpful:
A worthwhile modification July 11, 2013
Reviewer: Randall from Lebanon, CT United States  
I installed this side cocking breech on my QB78D, and what a positive difference it has made toward more enjoyable shooting.  No more struggling with the inconvenient bolt handle, but smooth as glass, and easy cocking.  Installing does demand the disassembly of the top end of the rifle, though anyone who is handy with technical skills should have no problems.  I suggest using moly paste, or white lithium grease on all parts that have metal to metal contact to assure yourself of smooth operation.  This mod is a winner, and well worth the effort.

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