FosTecH’s .22 Caliber Auto Sear Trip Kit for the Echo AR-II Trigger or Echo Sport Trigger:
.22 LR AR-15 Conversion Combo Pack: Everything you need to get your AR-15 shooting .22 LR with your Echo AR-II Trigger.
- 22 LR AR-15 Conversion Kit (including extra power recoil spring)
- Auto Sear Trip Kit (including extra trigger lock spring and caliber conversion hammer spring)
- (2) 25 round Magazines
.22 Magazine to work with the CMMG .22 dedicated uppers and .22 conversions from FosTecH. 25 round capacity.
* This is for one 20 round magazine
.22 LR CONVERSION KIT FOR THE AR-15 PLATFORM. Just swap this drop-in conversion with the bolt carrier group from your 5.56/.223 chambered rifle and you will be ready to shoot .22LR. Ships without a magazine. If you are purchasing this for use with the Echo Trigger, you will also need to purchase the Auto Sear Trip Kit. The Sear Trip …
.22 AR Conversion Parts
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