“.50 Caliber Investarm™ Plains Pistol Kit – Percussion Ignition – IA6110K” has been added to your cart. View cart Sale Investarm™ Gemmer Hawken Lock Main Spring – Fits Lyman™ Great Plains Rifles – IAGH316$15.20 Original price was: $15.20.$10.64Current price is: $10.64. Investarm™ Gemmer Hawken Lock Main Spring - Fits Lyman™ Great Plains Rifles - IAGH316 quantity Add to cart SKU: IAGH316 Category: Parts & Tools Tag: Investarm Description Description Investarm Gemmer Hawken lock main springFits Lyman™ Great Plains Rifle models Related products SaleRiflesInvestarm™ Bridger Hawken Rifle Kit – .50 Cal Flintlock – IA2410K $399.00 Original price was: $399.00.$315.02Current price is: $315.02. Add to cart SaleRifles.45 Cal Investarm™ Bridger Hawken Rifle DIY Kit – Percussion Ignition – IA2115K $366.60 Original price was: $366.60.$222.46Current price is: $222.46. Add to cart SaleRifles.54 Cal Investarm™ Gemmer Hawken Rifle Kit – Percussion Ignition – IA3114K $419.40 Original price was: $419.40.$242.00Current price is: $242.00. Add to cart