The SI Carbine Flatwire Spring is an economical, easy upgrade to any AR system with a carbine buffer system. The flatwire spring increases service life of the platform, smooths out the shooting cycle, and greatly outlasts the stock spring. Increased bolt load, in addition to decreased compression force increases reliability in cycling. Additionally, all SI Flatwire springs are cryogenically stress relieved to provide greater consistency, longer spring life, and greater resilience to high cyclic rates. At a cost not much greater than stock carbine springs, the SI Flatwire is an easy option for those either looking to replace worn buffer springs or begin new builds. Package include: 1x Carbine Length Flatwire Spring Features Cryo-cycled 17-7 ph steel for strength, reliability and longevity Decreased harmonics lessens system vibration for faster follow up shots. Increased bolt load for more positive feeding Reduces distracting AR "twang"
More...
Customer ratings for STRIKE INDUSTRIES AR-15 CARBINE FLAT WIRE SPRING
Number of ratings: 1
From brownells.com: 1
Average rating: 4
Has my Grendel running Great(19/06/2018)
AR-15 Carbine Flat Wire Spring was installed on a 18'' 6.5 Grendel JP Enterprise (JPE) Barrel. The accuracy was amazing, but was suffering from failure to lock the bolt back on the last round fired. Magazines are ASC 15rd (these work incredibly well with no mods to them). The Buffer was a JPE silent capture spring with (standard spring installed). Bolt, again a JPE matched bolt and FMOS bolt carrier. To fix I tried replacing the spring with one with just a slightly less spring rate. Which gave me a different set of malfunctions. Then I used a Geiselle Super 42, this was too powerful. Finally the combo that worked was the SI Flat Wire Spring and a Standard Carbine Buffer. It runs incredibly quiet and smooth, cycle all ammo that I have shot through it. It has function 100% will all magazines since the installation. The only reason why I don't give it five stars is, it was a pain to fully seat the the spring all the way on the shoulder of my particular Buffer, although you may not have the same issue. Great product, I will definitely use again.
Product no.: 100023239 STRIKE INDUSTRIES AR-15 CARBINE FLAT WIRE SPRING Mfr Part: SI-AR-FWS-C708747545555 The SI Carbine Flatwire Spring is an economical, easy upgrade to any AR system with a carbine buffer system. The flatwire spring increases service life of the platform, smooths out the shooting cycle, and greatly outlasts the stock spring. Increased bolt load, in addition to decreased compression force increases reliability in cycling. Additionally, all SI Flatwire springs are cryogenically stress relieved to provide greater consistency, longer spring life, and greater resilience to high cyclic rates. At a cost not much greater than stock carbine springs, the SI Flatwire is an easy option for those either looking to replace worn buffer springs or begin new builds. Package include: 1x Carbine Length Flatwire Spring Features Cryo-cycled 17-7 ph steel for strength, reliability and longevity Decreased harmonics lessens system vibration for faster follow up shots. Increased bolt load for more positive feeding Reduces distracting AR "twang"
36.9GBP65£36.90
*
Delivery time approx. 7-14 days. More than 10 pieces in USA warehouse
Upgrade your AR-15 with the Strike Industries Flat Wire Spring ⚙️ for enhanced reliability and smoother shooting. Perfect for new builds or replacements!
The SI Carbine Flatwire Spring is an economical, easy upgrade to any AR system with a carbine buffer system. The flatwire spring increases service life of the platform, smooths out the shooting cycle, and greatly outlasts the stock spring. Increased bolt load, in addition to decreased compression force increases reliability in cycling. Additionally, all SI Flatwire springs are cryogenically stress relieved to provide greater consistency, longer spring life, and greater resilience to high cyclic rates. At a cost not much greater than stock carbine springs, the SI Flatwire is an easy option for those either looking to replace worn buffer springs or begin new builds. Package include: 1x Carbine Length Flatwire Spring Features Cryo-cycled 17-7 ph steel for strength, reliability and longevity Decreased harmonics lessens system vibration for faster follow up shots. Increased bolt load for more positive feeding Reduces distracting AR "twang"
More...
Customer ratings for STRIKE INDUSTRIES AR-15 CARBINE FLAT WIRE SPRING
Number of ratings: 1
From brownells.com: 1
Average rating: 4
Has my Grendel running Great(19/06/2018)
AR-15 Carbine Flat Wire Spring was installed on a 18'' 6.5 Grendel JP Enterprise (JPE) Barrel. The accuracy was amazing, but was suffering from failure to lock the bolt back on the last round fired. Magazines are ASC 15rd (these work incredibly well with no mods to them). The Buffer was a JPE silent capture spring with (standard spring installed). Bolt, again a JPE matched bolt and FMOS bolt carrier. To fix I tried replacing the spring with one with just a slightly less spring rate. Which gave me a different set of malfunctions. Then I used a Geiselle Super 42, this was too powerful. Finally the combo that worked was the SI Flat Wire Spring and a Standard Carbine Buffer. It runs incredibly quiet and smooth, cycle all ammo that I have shot through it. It has function 100% will all magazines since the installation. The only reason why I don't give it five stars is, it was a pain to fully seat the the spring all the way on the shoulder of my particular Buffer, although you may not have the same issue. Great product, I will definitely use again.