The Uronen Precision Modular Buffer System removes rattles and spring sounds from the AR-15 charging engine. In addition, it makes the recoil softer, eliminates the vibration caused by the charging mechanism, making the recoil significantly clearer and easier to control.
Buffer:
- Buffer UL ultralight 36 grams
- Buffer L light 48 grams
- Buffer R regular 75 grams
- Buffer H heavy 95 grams
- UL is designed for rifles with aluminum or titanium bolt carrier, light recoil spring and roller cam pin
- UL also works with Uronen Precision Low Mass Steel Bolt Carrier
- L is designed for AR-15 rifles with low mass steel bolt carrier
- R replaces typical military specification buffers A1/A2 and M4
- H is designed for AR-15 rifles that need heavier buffer and heavier recoil springs, for example Finn Precision PCC and .223 16" with carbiine gas system
Spring:
- Spring L light: for AR-15 raceguns with roller cam pin
- Spring R regular: for whatever AR-15, expect UP MBS with UL buffer