Bolts & BCG Parts Archives - Operation Parts, Inc. https://operationparts.com/product-category/rifle/ar15-sr15-upper-receiver/upper-receiver-parts/bolts-bcg-parts/ Mon, 27 Apr 2026 23:06:45 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://operationparts.com/wp-content/uploads/2025/05/cropped-sqlogo-32x32.jpg Bolts & BCG Parts Archives - Operation Parts, Inc. https://operationparts.com/product-category/rifle/ar15-sr15-upper-receiver/upper-receiver-parts/bolts-bcg-parts/ 32 32 KAC-Knight’s Armament SR25 E2, Mod 1 Field Repair Kit https://operationparts.com/product/kac-knights-armament-sr25-e2-mod1-field-repair-kit/ https://operationparts.com/product/kac-knights-armament-sr25-e2-mod1-field-repair-kit/#respond Mon, 29 Sep 2025 18:07:50 +0000 https://operationparts.com/?post_type=product&p=176495 KAC-Knights Armament SR25 E2 Mod 1 Field Repair Kit (116748)  

The post KAC-Knight’s Armament SR25 E2, Mod 1 Field Repair Kit appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/kac-knights-armament-sr25-e2-mod1-field-repair-kit/feed/ 0 Centurion Arms Cam Pin-Hard Chrome https://operationparts.com/product/centurion-arms-cam-pin-hard-chrome/ https://operationparts.com/product/centurion-arms-cam-pin-hard-chrome/#respond Fri, 12 Jul 2024 17:09:22 +0000 https://operationparts.com/?post_type=product&p=123350 Centurion Arms Cam Pin-Hard Chrome (CAM-PIN-HC) AR15 Cam Pin – Heat Treated 4140 Steel w/ Hard Chrome Finish Forward pointing spear lasered to ensure same install after every cleaning

The post Centurion Arms Cam Pin-Hard Chrome appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/centurion-arms-cam-pin-hard-chrome/feed/ 0 Centurion Arms Cam Pin https://operationparts.com/product/centurion-arms-cam-pin/ https://operationparts.com/product/centurion-arms-cam-pin/#respond Fri, 12 Jul 2024 17:04:04 +0000 https://operationparts.com/?post_type=product&p=123348 Centurion Arms Cam Pin (CAM-PIN) AR15 Cam Pin – Heat Treated 4140 Steel w/ Phosphate Finish Forward pointing spear lasered to ensure same install every time

The post Centurion Arms Cam Pin appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/centurion-arms-cam-pin/feed/ 0 KAC-Knight’s Armament SR15 E3.2 Field Repair Kit https://operationparts.com/product/kac-knights-armament-sr15-e3-2-field-repair-kit/ https://operationparts.com/product/kac-knights-armament-sr15-e3-2-field-repair-kit/#respond Fri, 28 Jun 2024 19:38:11 +0000 https://operationparts.com/?post_type=product&p=123331 KAC-Knights Armament SR15 E3.2 Field Repair Kit (121261) The SR-15 Field Repair Kit includes the essential components to keep your rifle running over the long term. Also compatible with SR-16 variants. Contains: (2x) Ejector (1x) Ejector Roll Pin (2x) Ejector Spring (1x) Extractor (1x) Extractor Pivot Pin (2x) Extractor Springs, Heavy (1x) Cam Pin (1x) […]

The post KAC-Knight’s Armament SR15 E3.2 Field Repair Kit appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/kac-knights-armament-sr15-e3-2-field-repair-kit/feed/ 0 KAC-Knight’s Armament SR-15 E3.2 Bolt Assembly https://operationparts.com/product/kac-knight-s-armament-sr-15-e3-2-bolt-assembly/ https://operationparts.com/product/kac-knight-s-armament-sr-15-e3-2-bolt-assembly/#respond Fri, 28 Jun 2024 19:24:53 +0000 https://operationparts.com/?post_type=product&p=123329 KAC-Knight’s Armament SR-15 E3.2 Bolt Assembly (122054) The SR-15 E3.2 Enhanced Bolt features a number of components designed to exceed expectations for durability and service life, even when exposed to extreme and unrelenting conditions. Dual ejectors considerably mitigate wear and prolong lifespan compared to the legacy single ejector, delivering sustained ejection force to the case head […]

The post KAC-Knight’s Armament SR-15 E3.2 Bolt Assembly appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/kac-knight-s-armament-sr-15-e3-2-bolt-assembly/feed/ 0 Centurion Arms 5.56 V2 Bolt – Chrome https://operationparts.com/product/centurion-arms-5-56-v2-bolt-chrome/ https://operationparts.com/product/centurion-arms-5-56-v2-bolt-chrome/#respond Mon, 20 May 2024 21:20:12 +0000 https://operationparts.com/?post_type=product&p=123301 Centurion Arms 5.56 V2 Bolt – Chrome (BLT-CHR-V2 ) Centurion Arms’ new bolt design will make your AR platform more reliable and last longer with a lifetime guarantee against bolt breakage. Our new bolt has a body profile that creates a larger radius between the bolt lugs and the body that allows the pressure to be spread over a larger area reducing stress […]

The post Centurion Arms 5.56 V2 Bolt – Chrome appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/centurion-arms-5-56-v2-bolt-chrome/feed/ 0 Centurion Arms E4/ETB Tapered Bolt-Phosphate https://operationparts.com/product/centurion-arms-e4-etb-tapered-bolt-phosphate/ https://operationparts.com/product/centurion-arms-e4-etb-tapered-bolt-phosphate/#respond Tue, 14 May 2024 21:01:50 +0000 https://operationparts.com/?post_type=product&p=123289 Centurion Arms E4/ETB Tapered Bolt-Phosphate (BLT-E4-PHOS) Centurion Arms’ new bolt design will make your AR platform more reliable and last longer with a lifetime guarantee against bolt breakage. Our new bolt has a body profile that creates a larger radius between the bolt lugs and the body that allows the pressure to be spread over […]

The post Centurion Arms E4/ETB Tapered Bolt-Phosphate appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/centurion-arms-e4-etb-tapered-bolt-phosphate/feed/ 0 Centurion Arms C4 Bolt Carrier, Hard Chromed with Sand Rail Cuts https://operationparts.com/product/centurion-arms-c4-bolt-carrier-hard-chromed-with-sand-rail-cuts/ https://operationparts.com/product/centurion-arms-c4-bolt-carrier-hard-chromed-with-sand-rail-cuts/#respond Tue, 14 May 2024 20:32:17 +0000 https://operationparts.com/?post_type=product&p=123283 Centurion Arms C4 Bolt Carrier, Hard Chromed with Sand Rail Cuts (BC-CHR-SR) Carrier ONLY! Proudly American made in house, our new carrier will set the new standard for AR rifle bolt carrier groups. Experienced operators know the single most critical AR spare part is a spare bolt carrier group and ours have been subtly redesigned […]

The post Centurion Arms C4 Bolt Carrier, Hard Chromed with Sand Rail Cuts appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/centurion-arms-c4-bolt-carrier-hard-chromed-with-sand-rail-cuts/feed/ 0 Forward Controls Design Carrier Cam Pin https://operationparts.com/product/forward-controls-design-carrier-cam-pin/ https://operationparts.com/product/forward-controls-design-carrier-cam-pin/#respond Tue, 11 Apr 2023 23:09:21 +0000 https://operationparts.com/?post_type=product&p=122916 Forward Controls Design Carrier Cam Pin (SCP) SCP (SOTAR Cam Pin) is a collaboration between Chad Albrecht of School of American Rifle) and Forward Controls Design. SCP features a machined dimple on one side of the carrier cam pin, so the user can always reinstall the cam pin on the carrier in the same orientation.  […]

The post Forward Controls Design Carrier Cam Pin appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/forward-controls-design-carrier-cam-pin/feed/ 0 KAC-Knight’s Armament SR-16 E3 Complete Bolt, Chrome https://operationparts.com/product/kac-knight-s-armament-sr-16-e3-complete-bolt-chrome/ https://operationparts.com/product/kac-knight-s-armament-sr-16-e3-complete-bolt-chrome/#respond Tue, 05 Nov 2019 23:24:34 +0000 https://operationparts.com/?post_type=product&p=120925 ***Discontinued***

The post KAC-Knight’s Armament SR-16 E3 Complete Bolt, Chrome appeared first on Operation Parts, Inc..

]]> https://operationparts.com/product/kac-knight-s-armament-sr-16-e3-complete-bolt-chrome/feed/ 0