DGinGA Posted November 24, 2019 Report Share Posted November 24, 2019 The hammer spring guide broke off the knurled knob which screws into the receiver (referred to as the bumper on schematics). I have a replacement knob and guide - but its not the same. The spring guide is hollow, whereas the old one was solid. It has a flange which is smaller than the matching hole in the knob front. My question: how is this assembled? Is there another style of this item? Why are the new guides hollow? Im tempted to just lathe a guide to fit, as it doesnt seem very precise. Any guidance is appreciated. Link to comment Share on other sites More sharing options...
Republic Posted November 24, 2019 Report Share Posted November 24, 2019 (edited) It was redesigned to prevent breakage - the side with the flange rests in the recess of the bumper plug and is held in place by spring tension. It is not a precision assembly; if there's a little slop in the fitment of the flange within the bumper plug, it should not affect function. Edited November 24, 2019 by Republic Link to comment Share on other sites More sharing options...
StrangeRanger Posted November 24, 2019 Report Share Posted November 24, 2019 (edited) Get yourself a copy of Frank Iannamico's book. Along with a myriad of other info it gives the design history of the Reising. Bumper plugs and guides are covered in pages 53-55. The guide HAS to fit somewhat loosely in the plug for it to work properly. A tight-fitting plug may not be concentric enough to the receiver to prevent damage to the hammer spring; a loose-fitting guide will self-align https://www.smallarmsreview.com/inventory/detail.item.cfm?product_id=31 Edited November 25, 2019 by StrangeRanger Link to comment Share on other sites More sharing options...
GUNGUY45 Posted November 25, 2019 Report Share Posted November 25, 2019 My Reising has the 1 piece plug(integral guide rod), I found a 2 piece plug, cleaned it up, & blued it to match my gun. It was parked, & rusty...paid $5.00.I turned up a couple of rods to fit, & use that set-up to shoot it. Link to comment Share on other sites More sharing options...
emmagee1917 Posted November 26, 2019 Report Share Posted November 26, 2019 Be aware there is several types of bumper plugs . There was a few models of the one piece style as they tried cylindrical , tapered , and hollow styles to overcome the breakage problem . None of these really worked as the stem could not be made to completely align with the receiver bore . The first style two piece helped a lot , but still had problems . The final style had the rod knob fitted loose in the hole and set into the hole a wee bit so as the first coil of the hammer spring would fit into the hole . This final type is what you want to use . It allows movement to allow the hammer spring to exert even , equal pressure upon the stem and keep it centered.Chris Link to comment Share on other sites More sharing options...
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