Smooth Op­er­a­tor

Buf­fer tube so­lu­tions for Ar-plat­form car­bines and ri­fles


How do you know if your AR is run­ning well? Other than by feel, there’s a more ac­cu­rate way to see if your ri­fle’s ac­tion is healthy or not. Watch for its brass ejection pattern and you’ll see if your ri­fle is over- or un­der-gassed or if it’s run­ning per­fectly.

With your muz­zle point­ing down­range, let’s say that the muz­zle end is con­sid­ered point­ing at 12 o’clock. Di­rectly to your right is 3 and be­hind you is 6. If you no­tice your fired brass eject­ing for­ward of you, be­tween 12 and 3 o’clock, it can mean that your ri­fle is over-gassed. If your brass flies be­tween 3:00 and 4:30, your gas sys­tem is con­sid­ered healthy. If your brass is ejected back to­wards 4:30 to 6:00, your ri­fle may be un­der-gassed and short-stroking.

Many of the rea­sons your ri­fle may be overor un­der-gassed may in­clude am­mu­ni­tion choice or gas block is­sues. It’ll take some ex­per­i­ment­ing to fig­ure it out. Many times the is­sue can be solved with­out hav­ing to have to make a trip to the gun­smith sim­ply by ad­just­ing your AR’S buf­fer sys­tem. A heav­ier or lighter buf­fer or ac­tion spring can help tune your ri­fle for per­fect op­er­a­tion. Rule of thumb is that if your ri­fle is over­gassed, you’ll want to try a heav­ier buf­fer or spring. If it’s un­der-gassed, you might want to try a lighter buf­fer.

Re­plac­ing your stock buf­fer and spring isn’t only for tun­ing the health of your AR’S ac­tion. Us­ing ad­vanced af­ter­mar­ket buf­fer as­sem­bly parts can also help soften your ri­fle’s per­ceived re­coil, smooth its op­er­a­tion, and with some prod­ucts even make it run qui­eter by get­ting rid of the re­coil spring’s dis­tinc­tive (and an­noy­ing) “twang” sound. Gath­ered here for you is the lat­est in re­coil buf­fer and springs for your Ar-type ri­fle.

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