Leapers Model 4/15 Buffer

The Leapers Model 4/15 Buffer is a precision rubber buffer designed to stabilize the relationship between upper and lower receiver assemblies on modern tactical rifles. This compact accessory positions near the takedown pin and works to keep the upper section seated snugly against the lower, eliminating the micro-movement that degrades accuracy and accelerates wear on critical contact surfaces.

Constructed from elastomeric rubber, the buffer absorbs and dampens vibration transmission between receiver halves during firing cycles and handling. This vibration isolation is fundamental to maintaining shot-to-shot consistency, particularly important during precision shooting where cumulative POI (point of impact) shift from receiver flex can cost rounds downrange.

Operators running assigned or personally-owned rifles benefit from this buffer as a preventative maintenance component. Law enforcement and tactical shooters who subject their platforms to frequent training cycles see measurable reduction in loose-fit creep and receiver separation. The buffer is equally valuable for long-range precision shooters and patrol officers whose equipment reliability directly impacts mission success.