{"title":"AAP-01 Hammer Group Replacement Parts","description":"\u003cp\u003eGenuine Action Army replacement parts for the AAP-01 hammer group, each listed under its number on the Action Army parts list: the hammer, hammer housing, hammer sear, hammer rotor, valve knocker, auto sear and firing pin, plus the pins and springs that hold the group together.\u003c\/p\u003e\n\u003cp\u003eThese are the factory parts. Find a part by its number on the \u003ca href=\"\/pages\/aap-01-parts-diagram\"\u003einteractive AAP-01 parts diagram\u003c\/a\u003e, or browse all \u003ca href=\"\/collections\/aap-01-replacement-parts\"\u003eAAP-01 replacement parts\u003c\/a\u003e. For upgraded hammer parts, see the \u003ca href=\"\/collections\/aap-01-hammer-sets\"\u003eAAP-01 hammer sets\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"action-army-aap01-replacement-part-55-hammer-spring","title":"Action Army AAP-01 Replacement Part 55 - Hammer Spring","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer spring (part 55)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eSets how hard the hammer strikes the valve knocker. A sagged spring is a very common cause of a pistol that has gradually lost power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735134613557,"sku":"AA-AAP-55","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-55-Hammer-Spring-Action-Army-31834943.jpg?v=1755673795"},{"product_id":"action-army-aap01-replacement-part-52-hammer","title":"Action Army AAP-01 Replacement Part 52 - Hammer","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer (part 52)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe hammer itself. Replace it if the sear notch has rounded, which shows as a creepy trigger or a hammer that follows the slide down.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735140905013,"sku":"AA-AAP-52","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-52-Hammer-Action-Army-31835144.jpg?v=1755673802"},{"product_id":"action-army-aap01-replacement-part-51-hammer-sear","title":"Action Army AAP-01 Replacement Part 51 - Hammer Sear","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer sear (part 51)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eHolds the hammer back until the trigger releases it. A rounded or chipped sear face gives a creepy trigger, or a hammer that will not stay cocked.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735142707253,"sku":"AA-AAP-51","price":2.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-51-Hammer-Sear-Action-Army-31835350.jpg?v=1755673804"},{"product_id":"action-army-aap01-replacement-part-53-valve-knocker","title":"Action Army AAP-01 Replacement Part 53 - Valve Knocker","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003evalve knocker (part 53)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe arm that strikes the magazine output valve to release gas on each shot. A rounded or bent knocker gives weak, inconsistent shots.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735145066549,"sku":"AA-AAP-53","price":2.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-53-Valve-Knocker-Action-Army-31835520.jpg?v=1755673807"},{"product_id":"action-army-aap01-replacement-part-45-firing-pin","title":"Action Army AAP-01 Replacement Part 45 - Firing Pin","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003efiring pin (part 45)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe pin that transfers the hammer strike. Replace it if the tip has peened or the pin has bent, which shows as inconsistent shots.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735147819061,"sku":"AA-AAP-45","price":4.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-45-Firing-Pin-Action-Army-31835714.jpg?v=1755673815"},{"product_id":"action-army-aap01-replacement-part-88-hammer-sear-spring","title":"Action Army AAP-01 Replacement Part 88 - Hammer Sear Spring","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer sear spring (part 88)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eReturns the hammer sear between shots. A weak spring gives a vague trigger and unreliable sear engagement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735153127477,"sku":"AA-AAP-88","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-88-Hammer-Sear-Spring-Action-Army-31835911.jpg?v=1755673816"},{"product_id":"action-army-aap01-replacement-part-54-hammer-rotor","title":"Action Army AAP-01 Replacement Part 54 - Hammer Rotor","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer rotor (part 54)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe rotor in the hammer group that sets how the hammer indexes. Wear here upsets hammer timing and, with it, shot consistency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735156076597,"sku":"AA-AAP-54","price":2.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-54-Hammer-Rotor-Action-Army-31836174.jpg?v=1755673819"},{"product_id":"action-army-aap01-replacement-part-46-firing-pin-spring","title":"Action Army AAP-01 Replacement Part 46 - Firing Pin Spring","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003efiring pin spring (part 46)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eReturns the firing pin after each strike. A tired spring gives inconsistent power and is cheap to rule out early.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":40735156797493,"sku":"AA-AAP-46","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-46-Firing-Pin-Spring-Action-Army-31836359.jpg?v=1755673826"},{"product_id":"action-army-aap01-replacement-part-56-auto-sear-spring","title":"Action Army AAP-01 Replacement Part 56 - Auto Sear Spring","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003eauto sear spring (part 56)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eReturns the auto sear between cycles. If it weakens, full-auto fire becomes erratic and mode changes get unreliable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":42263713316917,"sku":"AA-AAP-56","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-56-Auto-Sear-Spring-Action-Army-32068655.jpg?v=1755682011"},{"product_id":"action-army-aap01-replacement-part-57v-auto-sear","title":"Action Army AAP-01 Replacement Part 57 - Auto Sear","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003eauto sear (part 57)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe sear that releases the hammer repeatedly while the trigger is held on full auto. Wear here causes erratic fire or run-away on semi.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":42263716397109,"sku":"AA-AAP-57","price":4.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-57-Auto-Sear-Action-Army-32068862.jpg?v=1755682015"},{"product_id":"action-army-aap01-replacement-part-47-auto-sear-pin","title":"Action Army AAP-01 Replacement Part 47 - Auto Sear Pin","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003eauto sear pin (part 47)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe pin the auto sear pivots on. A bent or worn pin lets the sear shift, which makes full-auto fire erratic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":42263748247605,"sku":"AA-AAP-47","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-47-Auto-Sear-Pin-Action-Army-32071159.jpg?v=1755682111"},{"product_id":"action-army-aap01-replacement-part-48-hammer-pin","title":"Action Army AAP-01 Replacement Part 48 - Hammer Pin","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer pin (part 48)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe pin the hammer pivots on. Pins bend or walk out over time, and a loose one lets the hammer sit off-centre.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":42263751589941,"sku":"AA-AAP-48","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-48-Hammer-Pin-Action-Army-32071343.jpg?v=1755682120"},{"product_id":"action-army-aap01-replacement-part-49-hammer-sear-pin","title":"Action Army AAP-01 Replacement Part 49 - Hammer Sear Pin","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer sear pin (part 49)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe pin the hammer sear pivots on. A worn pin introduces play that shows up as a creepy or inconsistent trigger.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":42263754965045,"sku":"AA-AAP-49","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-49-Hammer-Sear-Pin-Action-Army-32071556.jpg?v=1755682131"},{"product_id":"action-army-aap01-replacement-part-50-hammer-housing","title":"Action Army AAP-01 Replacement Part 50 - Hammer Housing","description":"\u003cp\u003eGenuine Action Army replacement \u003cstrong\u003ehammer housing (part 50)\u003c\/strong\u003e for the Action Army AAP-01 gas blowback pistol.\u003c\/p\u003e\n\u003cp\u003eThe housing that carries the hammer group. Replace it if the pin bores have worn oval and the hammer has developed side-play.\u003c\/p\u003e\u003cp\u003eIf you would rather have the hammer group ready assembled, the \u003ca href=\"\/products\/tti-aap01-drop-in-hammer-set\"\u003eTTI AAP-01 drop-in hammer set\u003c\/a\u003e is a TTI hammer set supplied already fitted in a Part 50 housing, with the other AAP-01 parts it needs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Action Army AAP-01 and AAP-01C. Most AAP-01 parts are shared across the two, but not all — check the part number against your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003eTaken from new disassembled pistols, so parts may carry small marks or minor defects but are unused. Supplied in plain packaging.\u003c\/p\u003e","brand":"Action Army","offers":[{"title":"Default Title","offer_id":42263756144693,"sku":"AA-AAP-50","price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/4985\/9893\/files\/Action-Army-AAP01-Replacement-Part-50-Hammer-Housing-Action-Army-32071713.jpg?v=1755682139"}],"url":"https:\/\/www.ebog-designs.co.uk\/collections\/aap-01-hammer-group-replacement-parts.oembed","provider":"Ebog Designs","version":"1.0","type":"link"}