https://completepartskit.com Mon, 05 Oct 2026 00:40:38 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://completepartskit.com/springfield-echelon-9mm-4-compact-slide-with-barrel-and-recoil-assy-4-0-ec4409/ https://completepartskit.com/springfield-echelon-9mm-4-compact-slide-with-barrel-and-recoil-assy-4-0-ec4409/#comments Thu, 10 Sep 2026 11:33:37 +0000 https://completepartskit.com/springfield-echelon-9mm-4-compact-slide-with-barrel-and-recoil-assy-4-0-ec4409/


Unlock the full potential of the Springfield Armory® EchelonT with factory Slide Assembly Kits-built around the serialized C. O. G. (Central Operating Group) for unmatched modularity across the platform. Whether upgrading a full-size Echelon 4.5, or converting the smaller, more concealable Echelon 4.0 into a full-size configuration, these kits are the ideal upgrade. NOTE: Using a Compact Slide with a Full Size grip module results in the dust cover of the full size grip module to be longer than the barrel of the Compact Slide. Each kit includes a slide and barrel configuration, along with a complete set of V. Pins and screws for straightforward installation and maintenance. Model: Echelon 4.0. Accessory Type: Slide Assembly.

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LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete OEM Sig Sauer P320 M18 slide in Coyote Brown cerakote with loaded chamber indicator. Slide comes fully assembled and includes compact GRRRRP with manual safety cutout. Slide is equipped with OEM Sig tritium night sights. Slide has an optics cut for Leupold Deltapoint Pro and Sig Romeo1 Pro red dot sights. Also includes FREE BONUS BM940 Osborne tactical compact folding knife AND zippered pistol case. Sig Sauer P320 M18 compact slide with Romeo and DPP optics cut. OEM Sig P320 9mm black nitride barrel – 1:10 twist. Sig tritium night sights. Sig P320 OEM upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. Sig compact GRRRP in FDE with safety. FREE BONUS BM940 Osborne compact folding knife – New in box. FREE BONUS zippered compact pistol case.

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LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete Sig Sauer P320 Compact Slide (X-Carry/M18 size) in stainless finish. Comes fully assembled with an Optimus spiral fluted barrel in polished silver with custom serrations on the chamber. Plus suppressor height night sights installed. Slide has an optics cut for Sig Romeo1 red dot sight (not compatible with Sig Romeo1 Pro). Also includes FREE BONUS BM940 tactical folding knife – New in box. Sig P320 compact (M18 size) slide in stainless. KM Tactical Sig P320 9mm 3.9 Optimus spiral fluted barrel – 1:10 twist. Sig X-Ray3 suppressor height tritium night sights installed. OEM Sig P320 upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. FREE BONUS BM940 Osborne tactical folding knife – New in box.

]]> https://completepartskit.com/sig-p320-slide-optimus-barrel-complete-compact-3-9-upper-optics-cut-free-knife/feed/ 0 https://completepartskit.com/gunsmith-special-sig-p320-slide-with-compensator-complete-compact-upper-rmr-cut/ https://completepartskit.com/gunsmith-special-sig-p320-slide-with-compensator-complete-compact-upper-rmr-cut/#comments Mon, 06 Jul 2026 08:23:44 +0000 https://completepartskit.com/gunsmith-special-sig-p320-slide-with-compensator-complete-compact-upper-rmr-cut/

















THIS LISTING IS FOR THE SLIDE UPPER ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete Sig Sauer P320 Compact (M18/ X-Carry Size) slide with an integrated compensator and a flush, crown cut 3.9 barrel in matte gold finish. Comes installed with suppressor height fiber optic sights. Slide has an optics cut for Trijicon RMR/SRO and Holosun 407C 507C red dot sights. The optics mounting holes has two stripped screws broken off and will need to be re-tapped but does not affect functionality. Also includes FREE BONUS BM940 Osborne tactical folding knife – New in box. KM Tactical B. E compensated slide for Sig Sauer P320. KM Tactical 9mm P320 3.9 barrel in gold PVD finish – 1:10 twist. OEM Sig P320 upper parts kit installed. OEM Sig P320 compact recoil spring. KM Tactical suppressor height fiber optic sights. FREE BONUS BM940 Osborne tactical folding knife – New in box.

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LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete Sig Sauer P320 Compact Slide (M18 size) in Olive Drab green. Comes fully assembled with an Agency Arms fluted match barrel. Slide has night sights installed. Also includes FREE BONUS BM535 Bugout ultra-light EDC folding knife – New in box. Sig Sauer P320 compact slide (M18 size) – some cosmetic wear on slide finish. Agency Arms P320 9mm mid-line fluted match barrel – 1:10 twist. Tritium night sights – Tritium front/blacked out rear. Sig P320 OEM upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. FREE BONUS BM535 Bugout ultra-light folding knife – New in box.

]]> https://completepartskit.com/sig-p320-slide-with-agency-arms-barrel-complete-m18-compact-3-9-upper-free-knife/feed/ 0 https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife-2/ https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife-2/#comments Mon, 15 Jun 2026 19:34:45 +0000 https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife-2/

















LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete Sig Sauer P320 X-Carry Compact Slide (M18 size) in Flat Dark Earth cerakote and installed with a Justice 27mm GREEN dot sight with 3MOA reticle. Slide comes fully assembled with flush crown cut gold barrel and equipped with suppressor height Sig X-Ray tritium night sights. The suppressor height sights can co-witness with the optic. Slide has a dual optics cut for Leupold Deltapoint Pro + Sig Romeo1 Pro red dot sights AND can also fit Trijicon RMR sights with an adapter plate, which is included. Also includes FREE BONUS BM535 Bugout compact folding knife. Sig Sauer P320 X-Carry compact slide (M18 size) with dual optics cut. Swampfox Justice 27mm green dot sight with 3 MOA reticle. Combat Armory P320 9mm flush crown cut barrel – 1:10 twist. Sig X-Ray3 suppressor height tritium night sights. Sig P320 OEM upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. Swampfox Justice box with optics cover hood, adjustment tools, extra mounting screws, and manual. FREE BONUS Bugout compact folding knife – New in box.

]]> https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife-2/feed/ 0 https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife-2/ https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife-2/#comments Tue, 02 Jun 2026 07:02:45 +0000 https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife-2/
















LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete OEM Sig Sauer P320 M18 slide in Coyote Brown cerakote with loaded chamber indicator. Slide comes fully assembled and includes compact GRRRRP with manual safety cutout. Slide is equipped with OEM Sig tritium night sights. Slide has an optics cut for Leupold Deltapoint Pro and Sig Romeo1 Pro red dot sights. Also includes FREE BONUS BM940 Osborne tactical compact folding knife AND zippered pistol case. Sig Sauer P320 M18 compact slide with Romeo and DPP optics cut. OEM Sig P320 9mm black nitride barrel – 1:10 twist. Sig tritium night sights. Sig P320 OEM upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. Sig compact GRRRP in FDE with safety. FREE BONUS BM940 Osborne compact folding knife – New in box. FREE BONUS zippered compact pistol case.

]]> https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife-2/feed/ 0 https://completepartskit.com/factory-springfield-hellcat-compact-pro-slide-completion-kit-all-parts/ https://completepartskit.com/factory-springfield-hellcat-compact-pro-slide-completion-kit-all-parts/#comments Mon, 23 Feb 2026 04:21:44 +0000 https://completepartskit.com/factory-springfield-hellcat-compact-pro-slide-completion-kit-all-parts/




Factory Springfield Hellcat (9mm) complete slide internal parts. Taken from a lightly used factory original Hell Cat. This will fit both the Compact and Pro models. Includes: complete striker assembly, complete extractor and assembly, striker pin safety and spring and striker locking plate / cover, and recoil spring assembly. Used in excellent condition and totally clean. No carbon/residue on the parts. It only includes the parts listed as pictured and NO OTHER PARTS.

]]> https://completepartskit.com/factory-springfield-hellcat-compact-pro-slide-completion-kit-all-parts/feed/ 0 https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife/ https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife/#comments Tue, 27 Jan 2026 15:27:45 +0000 https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife/
















LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete OEM Sig Sauer P320 M18 slide in Coyote Brown cerakote with loaded chamber indicator. Slide comes fully assembled and includes compact GRRRRP with manual safety cutout. Slide is equipped with OEM Sig tritium night sights. Slide has an optics cut for Leupold Deltapoint Pro and Sig Romeo1 Pro red dot sights. Also includes FREE BONUS BM940 Osborne tactical compact folding knife AND zippered pistol case. Sig Sauer P320 M18 compact slide with Romeo and DPP optics cut. OEM Sig P320 9mm black nitride barrel – 1:10 twist. Sig tritium night sights. Sig P320 OEM upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. Sig compact GRRRP in FDE with safety. FREE BONUS BM940 Osborne compact folding knife – New in box. FREE BONUS zippered compact pistol case.

]]> https://completepartskit.com/sig-p320-m18-slide-complete-compact-3-9-upper-leupold-dpp-optics-cut-free-knife/feed/ 0 https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife/ https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife/#comments Sat, 29 Nov 2025 01:19:46 +0000 https://completepartskit.com/sig-p320-slide-with-red-dot-sight-complete-m18-compact-3-9-upper-fde-free-knife/

















LISTING IS FOR A COMPLETE SLIDE ASSEMBLY AND BONUS ITEMS ONLY. LOWER IS NOT INCLUDED. Complete Sig Sauer P320 X-Carry Compact Slide (M18 size) in Flat Dark Earth cerakote and installed with a Justice 27mm GREEN dot sight with 3MOA reticle. Slide comes fully assembled with flush crown cut gold barrel and equipped with suppressor height Sig X-Ray tritium night sights. The suppressor height sights can co-witness with the optic. Slide has a dual optics cut for Leupold Deltapoint Pro + Sig Romeo1 Pro red dot sights AND can also fit Trijicon RMR sights with an adapter plate, which is included. Also includes FREE BONUS BM535 Bugout compact folding knife. Sig Sauer P320 X-Carry compact slide (M18 size) with dual optics cut. Swampfox Justice 27mm green dot sight with 3 MOA reticle. Combat Armory P320 9mm flush crown cut barrel – 1:10 twist. Sig X-Ray3 suppressor height tritium night sights. Sig P320 OEM upper parts kit installed. Sig M18 OEM compact dual recoil spring assembly. Swampfox Justice box with optics cover hood, adjustment tools, extra mounting screws, and manual. FREE BONUS Bugout compact folding knife – New in box.

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