From elsewhere:
This is what I know will work on the M&P 15-22:
1. What Lower AR-15 parts are interchangable?
a. Trigger
b. Stock MilSpec MAGPUL MOE works great and is tight with very little wobble
c. Grip MAGPUL MOE works but Modifications maybe needed
d. Trigger Pins
e. Takedown Pins
f. Detent Pins/Springs
g. Bolt Catch
h. Mag Release
i. Sling Adapters
j. Ambi Fire Select
2. What Upper AR-15 parts are interchangable?
a. Charging Handle Latch
b. Flash/Muzzle Devices
c. Barrels*
d. Handguards
e. Backup Sights
f. Rail Accessories
3. What Modifications can be done do adapt AR-15 parts?
a. BAD Lever will work with grinding of the lower and BAD lever
b. Sling Mounts
c. MOE Grip
d. Ambi Fire Select
* No barrels.
Last edited by bamashooter; 09-17-2017 at 05:21 PM.
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