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Sig Sauer Gun Parts - Pistol Barrels, Muzzle Devices, Gas Blocks, & More! — 488 products / 634 models

Whether you're hunting, competing, or shooting for fun, having the best parts for your favorite firearm is important, and Sig Sauer Parts provide you with the accessories to customize and upgrade your weapon. For your AR-15, you'll find top-quality AR15 Parts including uppers and lowers, stabilizing braces, and more! Our selection of Sig Sauer pistol barrels is extensive, so you're sure to find the perfect replacement for your gun, whether you're upgrading, adding or removing length, or swapping out an old barrel. If you need a new trigger, discover the wide range of options that enhance your competitive shots or hunting accuracy. Here at OpticsPlanet, we want you to be completely satisified with your purchase. Browse our handy How-To Articles and Blog Posts for information at your fingertips. We have product specialists standing by ready to answer any questions you might have, and we offer FREE SHIPPING on all orders over $49 so there is no reason not to buy Gun Parts by Sig Sauer today!image

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488 Products in Sig Sauer Gun Parts

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Image of SIG SAUER MCX/MPX Collapsible Stock SIG SAUER MCX/MPX Collapsible Stock (59) List: $299.99 (Save 17%) $248.49 Best Rated
Image of SIG SAUER P365 Grip Module SIG SAUER P365 Grip Module (11) List: $299.99 (Save $14.50) $285.49 Best Rated
Image of SIG SAUER Barrel, Threaded, 220, 45, Chr SIG SAUER Barrel, Threaded, 220, 45, Chr (14) List: $229.99 (Save 22%) $179.99 Blazin' Deal
Image of SIG SAUER Flip Up Iron Sight Set SIG SAUER Flip Up Iron Sight Set (67) List: $139.99 (Save $8.00) $131.99 13% Coupon
Image of SIG SAUER Cal-x Kit, Sigmcx, 5.56 Nato, 9in, Lt, W SIG SAUER Cal-x Kit, Sigmcx, 5.56 Nato, 9in, Lt, W List: $999.99 (Save 22%) $779.99 Free 2 Day Shipping
Image of SIG SAUER P365/ P365X/P365XL Corrosion-Resistant Slide Completion Kit w/Extractors and Strikers SIG SAUER P365/ P365X/P365XL Corrosion-Resistant Slide Completion Kit w/Extractors and Strikers (9) List: $104.29 (Save $2.50) $101.79 Best Rated
Image of SIG SAUER Pro P320 9mm Full Size XRAY3 Sights Barrel Assembly SIG SAUER Pro P320 9mm Full Size XRAY3 Sights Barrel Assembly (7) List: $799.99 (Save 18%) $657.99 Best Rated
Image of SIG SAUER MCX Spear 7.62 NATO Gas Valve Threaded Barrel And Gas Block Assembly 2 models SIG SAUER MCX Spear 7.62 NATO Gas Valve Threaded Barrel And Gas Block Assembly As Low As (Save Up to 24%) $1,139.00 On Sale
Image of SIG SAUER Stock, Mcx, Mpx, Sig Folding & Telescoping SIG SAUER Stock, Mcx, Mpx, Sig Folding & Telescoping (3) List: $249.99 (Save $10.00) $239.99 13% Coupon
Image of SIG SAUER P226 9 mm Chrome Phosphate Threaded Barrel SIG SAUER P226 9 mm Chrome Phosphate Threaded Barrel (18) List: $229.99 (Save 22%) $179.99 Blazin' Deal
Image of SIG SAUER Sig MPX Minimalist Plus Folding Stock SIG SAUER Sig MPX Minimalist Plus Folding Stock (11) List: $249.99 (Save 17%) $207.49 Best Rated
Image of SIG SAUER P320/250 Compact 9 mm 4.6 in Threaded 1/2x28 Pistol Barrel 2 models SIG SAUER P320/250 Compact 9 mm 4.6 in Threaded 1/2x28 Pistol Barrel (13) As Low As (Save Up to 32%) $155.99 Best Rated
Image of SIG SAUER Pro P320 9mm Romeo X Pro XRAY3 Sights Barrel Assembly 7 models SIG SAUER Pro P320 9mm Romeo X Pro XRAY3 Sights Barrel Assembly (8) As Low As (Save Up to 16%) $584.99 Best Rated
Image of SIG SAUER P365 .380 ACP Caliber X-Change Kit SIG SAUER P365 .380 ACP Caliber X-Change Kit List: $399.99 (Save 13%) $349.99 Free 2 Day Shipping
Image of SIG SAUER P365 X-Macro 9/380 Grip Standard Module 2 models SIG SAUER P365 X-Macro 9/380 Grip Standard Module (39) As Low As $83.99 Best Rated
Image of SIG SAUER P229-1 9mm Luger Threaded Barrel SIG SAUER P229-1 9mm Luger Threaded Barrel (19) List: $229.99 (Save 22%) $179.99 Blazin' Deal
Image of SIG SAUER P365-XMacro Compact 9mm Caliber X-Change Kit SIG SAUER P365-XMacro Compact 9mm Caliber X-Change Kit List: $619.99 (Save 15%) $529.99
Image of SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in (7) List: $214.99 (Save $6.50) $208.49 Free 2 Day Shipping
Image of SIG SAUER MCX-Spear LT 9in 300Blk Barrel And Gas Block Assembly SIG SAUER MCX-Spear LT 9in 300Blk Barrel And Gas Block Assembly List: $899.99 (Save 16%) $759.99
Image of SIG SAUER Mcx-spear Lt 16in 5.56 Barrel & Gas Block Assembly SIG SAUER Mcx-spear Lt 16in 5.56 Barrel & Gas Block Assembly List: $899.99 (Save 16%) $755.99
Image of SIG SAUER P229 Barrel, .357SIG, Blued SIG SAUER P229 Barrel, .357SIG, Blued (20) List: $179.99 (Save 13%) $155.99 Best Rated
Image of SIG SAUER MCX/MPX Minimalist Plus Locking Folding Stock 3 models SIG SAUER MCX/MPX Minimalist Plus Locking Folding Stock (1) As Low As (Save Up to 17%) $215.99 Final Sale
Image of SIG SAUER Cross Threaded Rifle Barrel 5 models SIG SAUER Cross Threaded Rifle Barrel As Low As (Save Up to 15%) $549.99 Final Sale
Image of SIG SAUER X-Ray3 Pistol Sight Set, No. 6 Green Front, No. 8 Rear, round SIG SAUER X-Ray3 Pistol Sight Set, No. 6 Green Front, No. 8 Rear, round (12) List: $134.99 (Save 26%) $99.99 Best Rated
Image of SIG SAUER P365 9 mm Factory Replacement Barrel 2 models SIG SAUER P365 9 mm Factory Replacement Barrel (5) As Low As (Save Up to 32%) $121.99 Clearance
Image of SIG SAUER Slide Catch Lever, Black Oxide SIG SAUER Slide Catch Lever, Black Oxide List: $33.99 (Save 29%) $23.99
Image of SIG SAUER Recoil Spring Assembly for P365 w/ 3.1in Barrel SIG SAUER Recoil Spring Assembly for P365 w/ 3.1in Barrel (9) List: $45.99 (Save 24%) $34.99 Best Rated
Image of SIG SAUER X-Ray3 Pistol Sight Set, No. 8 Green Front, No. 8 Rear, square 2 models SIG SAUER X-Ray3 Pistol Sight Set, No. 8 Green Front, No. 8 Rear, square (17) As Low As (Save Up to 43%) $79.99 Blazin' Deal
Image of SIG SAUER P320-XFull Size 9/40/357 Grip Module Manual Safety 2 models SIG SAUER P320-XFull Size 9/40/357 Grip Module Manual Safety (4) As Low As (Save Up to 18%) $73.99
Image of SIG SAUER ZEV P226 9mm Romeo 1 Pro Combat Sights Barrel Assembly SIG SAUER ZEV P226 9mm Romeo 1 Pro Combat Sights Barrel Assembly (4) List: $899.99 (Save 16%) $759.99
Image of SIG SAUER P320 Compact/Carry Threaded Pistol Barrel, 9mm Luger SIG SAUER P320 Compact/Carry Threaded Pistol Barrel, 9mm Luger (6) List: $229.99 (Save 16%) $193.49
Image of SIG SAUER MCX/MPX Folding Visor Rifle Stock SIG SAUER MCX/MPX Folding Visor Rifle Stock List: $299.99 (Save $10.50) $289.49
Image of SIG SAUER Safety Lever Pin SIG SAUER Safety Lever Pin (7) List: $29.99 (Save 13%) $25.99 Best Rated
Image of SIG SAUER Fixed/Folding Pivoting Contour Brace w/ Locking Hinge 4 models SIG SAUER Fixed/Folding Pivoting Contour Brace w/ Locking Hinge (9) As Low As (Save Up to 24%) $189.99 Blazin' Deal
Image of SIG SAUER Stock Adapter - 1913 Interface Folding Knuckle SIG SAUER Stock Adapter - 1913 Interface Folding Knuckle (33) List: $129.99 $110.99 13% Coupon
Image of SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded (15) List: $229.99 (Save 17%) $189.99
Image of SIG SAUER P320 AXG Carry 9/40/357 Grip Module Assembly SIG SAUER P320 AXG Carry 9/40/357 Grip Module Assembly (52) List: $409.99 (Save 19%) $333.49 Best Rated
Image of SIG SAUER MCX-Spear LT 11.5in 5.56 Barrel And Gas Block Assembly SIG SAUER MCX-Spear LT 11.5in 5.56 Barrel And Gas Block Assembly (1) List: $899.99 (Save 17%) $749.99
Image of SIG SAUER P320 XSeries TXG Full Size Grip Module 2 models SIG SAUER P320 XSeries TXG Full Size Grip Module (4) As Low As (Save Up to 19%) $203.49
Image of SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger 2 models SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger (12) As Low As (Save Up to 36%) $147.99 Blazin' Deal
Image of SIG SAUER 9 mm Barrel For P938 Compact Tb SIG SAUER 9 mm Barrel For P938 Compact Tb (9) List: $229.99 (Save 12%) $202.49 Free 2 Day Shipping
Image of SIG SAUER 9 mm Barrel For P229, Tb 3 models SIG SAUER 9 mm Barrel For P229, Tb (5) As Low As (Save Up to 30%) $161.99 Final Sale
Image of SIG SAUER Factory Replacement M-LOK Handguard for M400 TREAD 5 models SIG SAUER Factory Replacement M-LOK Handguard for M400 TREAD (39) As Low As (Save Up to 32%) $101.99 13% Coupon
Image of SIG SAUER P320 Flat Skeletonized Enhanced Stainless Steel Trigger SIG SAUER P320 Flat Skeletonized Enhanced Stainless Steel Trigger (14) List: $121.19 (Save 29%) $86.49 Best Rated
Image of SIG SAUER MCX/MPX Minimalist Locking Folding Stock 2 models SIG SAUER MCX/MPX Minimalist Locking Folding Stock As Low As (Save Up to $23.94) $237.49 Final Sale
Image of SIG SAUER Factory Replacement Adjustable Flip Up Sight Set for M400 TREAD 2 models SIG SAUER Factory Replacement Adjustable Flip Up Sight Set for M400 TREAD (22) As Low As (Save Up to 20%) $119.99 Final Sale
Image of SIG SAUER P226 9 mm Threaded Barrel 2 models SIG SAUER P226 9 mm Threaded Barrel (39) List: $229.99 (Save 16%) $193.49 Best Rated
Image of SIG SAUER MCX Stock Adapter Kit SIG SAUER MCX Stock Adapter Kit (1) List: $166.99 (Save $11.00) $155.99
Image of SIG SAUER Factory Replacement Two Stage Flat Blade Trigger Kit for M400 TREAD SIG SAUER Factory Replacement Two Stage Flat Blade Trigger Kit for M400 TREAD (2) List: $119.00 (Save 18%) $97.79
Image of SIG SAUER P365 X-Macro Grip Module SIG SAUER P365 X-Macro Grip Module (2) List: $121.99 (Save 14%) $104.79
Image of SIG SAUER Spectre Comp Slide Assembly P365/P365XL/P365X 9mm Luger w/ Integrated Compensator and X-Ray3 Day/Night Suppressor Sights 2 models SIG SAUER Spectre Comp Slide Assembly P365/P365XL/P365X 9mm Luger w/ Integrated Compensator and X-Ray3 Day/Night Suppressor Sights (29) As Low As (Save Up to 13%) $457.99 Best Rated
Image of SIG SAUER Fnc Extractor SIG SAUER Fnc Extractor List: $43.99 (Save 19%) $35.49
Image of SIG SAUER P320 AXG Carry Medium Grip Modules SIG SAUER P320 AXG Carry Medium Grip Modules (33) List: $399.99 (Save 20%) $319.99 Best Rated
Image of SIG SAUER P226 9 mm Chrome Phosphate Barrel SIG SAUER P226 9 mm Chrome Phosphate Barrel (7) List: $179.99 (Save 14%) $154.49 Best Rated
Image of SIG SAUER P365 Flat Pistol Trigger KIT 2 models SIG SAUER P365 Flat Pistol Trigger KIT (40) List: $49.99 (Save Up to 17%) $43.99 Best Rated
Image of SIG SAUER P320 Compact/Carry 9mm Luger Barrel 5 models SIG SAUER P320 Compact/Carry 9mm Luger Barrel (10) As Low As (Save Up to 40%) $107.99 Clearance
Image of SIG SAUER P320 X-Series Grip Module Assembly 15 models SIG SAUER P320 X-Series Grip Module Assembly (35) As Low As (Save Up to 16%) $74.79 Blazin' Deal
Image of SIG SAUER P320 9 mm Luger Threaded Barrel 2 models SIG SAUER P320 9 mm Luger Threaded Barrel (2) List: $229.99 (Save 15%) $195.49 Final Sale
Image of SIG SAUER P320 X-Compact/Subcompact Threaded Pistol Barrel, 9mm Luger 2 models SIG SAUER P320 X-Compact/Subcompact Threaded Pistol Barrel, 9mm Luger (1) As Low As (Save Up to 37%) $145.99 Clearance
Image of SIG Sauer M17/M18/P320 9mm Luger/.357 SIG Corrosion-Resistant Slide Completion Kit w/Extractors SIG Sauer M17/M18/P320 9mm Luger/.357 SIG Corrosion-Resistant Slide Completion Kit w/Extractors (4) List: $129.99 (Save 22%) $101.79
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