Universal Weight-Tunable ARCALOCK Rail and Kits

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ARCALOCK has been a huge success since its release in July of 2018. As the rails have become more popular, we have also seen the rise in popularity of rifle weight kits. With the introduction of the Manners TCS stock in late 2019, we designed and built an ARCALOCK weight system, and are ready to make it available to the general public. This is the 14.25″ Universal ARCALOCK Rail!

WHAT WILL IT FIT – Lots of things. We anticipate this will fit about 98% of Manners PRS1, PRS1, T2A, T2A GAP, T4A, T4A TEAM and T5A stocks. We made this as universal as possible, while still retaining weight tuning capability. These kits will come with t-nut hardware to add attachment points if your factory-installed attachment points do not line up with our mounting slots.

WEIGHT – The bare rail weighs just over 6oz. With all 5 weights in the rail, the weight ends up at about 23.6oz. Each weight weighs 3.5oz.

THICKNESS – These rails are .400″ thick. For reference, our standard 14″, 12″ and 10″ Universal ARCALOCK rails are .270″ thick.

FINISH – Rails will be black hardcoat anodized, and the weights will remain raw brass.

WEIGHT 3 lbs
DIMENSIONS 15 × 2 × 2 in

Area 419


Rail + 5 Weights


  • 5
    Area419 Weighted Arca Rail

    Posted by Steve on Apr 27th 2022

    The weighted Area419 arca rail is very well made. I was worried it was going to be too thick but actually I don't even notice the difference from a standard arca rail. The weights fit perfectly into the rail without any rattling or movement. Not a huge fan of the scapled edges but it doesn't bother me. I was able to add this rail on the forward flat portion of a McMillan U10-7 stock with a 20" MTU Vudoo 360 and have it balance almost perfectly.

  • 5

    Posted by J Smith on Feb 17th 2022

    As always, AandJSporting delivered extremely quick and it was exactly what I ordered. It’s the reason I keep coming back.