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J P ENTERPRISES
AR-15/M16 ADJUSTABLE GAS BLOCKS

812872021478 452000148

Pressure Adjustable For Smoother Cycling

Replaces the factory front sight/gas block and allows you to tune the gas system for smoother cycling and operation. Especially critical on match and varmint rifles when shooting both factory and custom-loaded ammunition. Simple setscrew lets you control the gas flow, so you can customize the setting for each load. Hex head setscrews clamp the block securely to the barrel. Installation instructions included. Low Profile model fits under handguard on .750" barrels. Rugged, all-steel construction resists gas erosion and helps maintain rifle’s weight distribution. JPGS-5B and JPGS-5S Low-Profile models have a slimmer profile to reduce weight and to fit under a wider variety of handguards.

SPECS: Low Profile - Carbon steel, matte black. 17⁄8" long, 1" (2.5cm) wide. .750" I.D. A2-Style - 416 stainless steel, matte black oxide finish. 17⁄8" long, 7⁄8" (2.2cm) wide, 33⁄8" (8.6cm) high, .750” I.D.

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Trykkjusterbar for jevnere sykling

Erstatter den originale forskjeftet/gassblokken og lar deg justere gassystemet for jevnere sykling og drift. Spesielt kritisk på match- og varmintgeværer når man skyter både fabrikk- og spesialladet ammunisjon. En enkel sett-skru gir deg kontroll over gassflyten, slik at du kan tilpasse innstillingen for hver ladning. Sekskantet hodeskruer klemmer blokken sikkert til løpet. Installasjonsinstruksjoner inkludert. Lavprofilmodellen passer under forskjeftet på .750" løp. Robust, helstålkonstruksjon motstår gasserosjon og hjelper med å opprettholde geværets vektfordeling. JPGS-5B og JPGS-5S Lavprofilmodeller har en slankere profil for å redusere vekt og for å passe under et bredere utvalg av forskjeft.

SPECS: Lavprofil - Karbonstål, matt svart. 17⁄8 tommer lang, 1 tomme (2,5cm) bred. .750 tommer I.D. A2-Stil - 416 rustfritt stål, matt svart oksidfinish. 17⁄8 tommer lang, 7⁄8 tomme (2,2cm) bred, 33⁄8 tommer (8,6cm) høy, .750” I.D.

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Kundevurderinger for J P ENTERPRISES LOW PROFILE ADJUSTABLE GAS BLACK .750" BORE, BLACK SS

Antall vurderinger: 13
Fra brownells.com: 13
Gjennomsnittsvurdering: 3,8

Solid (04.05.2015)

I gave this gas block 4 stars because it does not fit under the SLR Rifleworks rail I have. The bolt heads hang up. I thought about grinding the heads down, but just decided to look for another gas block. I would recommend this gas block for most rifles. It's stout and solid. The clamp is also solid when mounted. For most applications this will work well.

Everyone needs one of these. (08.09.2012)

I am so impressed with this Adj Gas Block. I brought it for my RRA ATH. It was easy to install (just follow the instructions), easier to adjust. I was a little worried when I noticed parallel scratch marks on the neck of the case that I had never seen before, but quickly realised that since the bolt carrier had been greatly slowed in its rearward travel that the case neck was scrapping along locking lugs in the barrel extension. The 'twang' of the buffer spring is almost non existent and felt recoil is about as noticeable if not less than a .22 rimfire. I would highly recommend this product to anyone looking for a low profile adj gas block in stainless steel. I've uploaded some images that may be of help showing the rifle with and without the suppressor attached. There was no difference that I noticed in the clearance between the old gas block and the new one.

Great JP Product, Perfect Fit (10.11.2015)

If you are looking for a relatively low priced Gas Block, that looks sleek and is easy to install and tune, this is it. JP makes great products, and it continues with this block. I was first weary about a clamp on gas block, many people dislike them and say they can shift and move, which they can, but if you install correctly and tighten down the block, it pretty much will not. You can ask JP for a recommended torque as well. I had barely tightened down all 4 screws and I couldn't budge it. Unless you plan on throwing your rifle on the ground, you will be all set. All around good quality and good product.

Makes for a much smoother AR (20.12.2015)

Most AR's are very over-gassed which creates a harsher recoiling cycle than needed. This block allows you to tune it down for an overall smoother shooting rifle. Install was easy except for the gas tube roll pin. It fit very tightly in the hole and was not easy to get in. because I had to bang on it so the one end flared open a bit so it didn't fit in all the way but enough to hold the gas block in place and luckily it just gets hidden inside the hand guard and doesn't matter too much so I will forgive it. After that install was very easy and straight forward.

Adjusting the gas system was easy and took less than 10 rounds. Just remember if you want to shoot it with many types of ammo they recommend you open it up a quarter turn more than is necessary to insure function with all loads and not just that one. This is what I did and it still shoots much softer and smoother than the traditional gas block.

Outstanding Gas Block!! (05.02.2016)

Purchased for installation on a DPMS LR-308T. Was having problems since day one with this rifle. Would short stroke or over travel right out of the box. DPMS was no help whats so ever. I guess they figure a $700 rifle should only work part of the time... I changed the gas block with the non-adjustable JP block, swapped the rear with the JP recoil reducing buffer and tuned spring and the Mako recoil reducing stock...You'd think that would've done it, right? Wrong...still over traveled. Tried every brand name of cartridge, reloaded with 4 types of powders and bullets, same thing over and over again. Finally talked to the Brownells Tech and he recommended this gas block and honing out the chamber. Took 18 minutes to install and 11 rounds to tune...GUESS WHAT?? This DPMS gutter scrap works like it should of from day one. The recoil is like shooting a 5.56. With the same setting I shot all the brands of ammo and every reload I made for this thing. I only had to adjust it once after 22 rds. After 80 rds I checked the torque settings, (which are listed in the outstanding directions), for any movement, everything was perfect. Had a nice pile of brass 9' away and with no marks, where as before, it was a mangled mess scattered everywhere. I'm happier than a goose in the frying pan. Thank You Brownells and JP.

The best adjustable gas block out there! (06.03.2016)

Got this block in preparation for putting a suppressor on my 308 AR. Instructions on tuning were excellent. Set screw to lock in the adjustment is outstanding setup. Tuned it and the gun functions like a dream. I will be getting 2 more for other 308 ARs. I love the clamping effect of the 4 screws at the bottom, the composition of steel that you can really put a some torque into the clamp and make sure it never moves again. The adjustment is easy to access and it comes with a long allen wrench that can be used if the block is under a forend stock. I will now be putting this block on any more custom builds I do. The best one out there IMHO. JP did it again!

Gas tube milled 1/4 inch to short (13.03.2016)

Got this item ,Opened and found it caked in white powder from the anodizing .The after 20 min worth of cleaning I find that the hole for the gas tube is a 1/4 inch to short . Called and got the runaround . I purchased this item because of the reputation of the product . A 1/4 inch off???? I have 20$ Chinese adjustable's , Not that great but at least it was milled correctly . But Brownells was not to blame , Great selection and fast shipping . I will still buy here !!!

Totally lacking in full quality control. (17.03.2016)

I was very pleased with the first gas block I ordered. The second two were a huge disappointment. Not the usual JP quality I have come to expect. I had to grind at least 1/8 of an inch off the gas tube before the gas tube pin hole would through align with the tube and the gas block. I tried the second one and the same issue was there. The gas tube hole in the block was not drilled deep enough on both of them. I made one fit my personal gun but am sending one back. I would have given them 5 stars on the first one I installed, but have to give them only 1 star for their quality control.

NO QC (22.03.2016)

Gas tube hole is not milled deep enough on this gas block. Tried it with 3 gas tubes and it does not come close to being deep enough. Not sure how this slipped through.

Slight issue, but easy fix. (05.08.2016)

After reading a few prior reviews, I was somewhat hesitant in buying another one of these gas blocks but I thought it may have been a bad run and issue was corrected. Gas block came in and made an attempt to install. Had the same issue as others. Gas tube wouldn't slide in far enough to install gas tube roll pin. After a closer look, I found that there was some kind of substance inside the actual gas tube hole. Simple solution was to take a small flat head screwdriver and scrape the stuff out of there. Problem was solved and it's working as designed.

Read the reviews after purchase (19.12.2016)

As some have noted in their reviews, the gas tube will not seat far enough into the tube hole, to line up with the roll pin. Mine was about 1/8" off where it needed to be. After reading the reviews, I finger rolled a drill bit in the hole, and brought up quite a lot of sand/powder/ash material from the bottom of the hole. For some reason, I couldn't believe this company would not have drilled this hole to the proper depth, and concluded it must be filled with this powder. After finger rolling the drill bit, several times, the tube fits well, nice and snug, as it should. Net, net, before returning, do yourself a favor and clear the hole. Should this have been done by the manufacturer? Sure...

works,wonder about adjustment screw (08.06.2014)

Purchased this for a new build and after shooting a friends that had an adjustable gas block and how smooth his gun was I got one and it is quality and seams top notch except the gas adjustment screw is so easy that I know it will come out even with loctite after a lot of use but it did come with 2.
I will put a nut on it or modify it to fix that but for the price$$$ that should be already there.

Great front post (15.02.2016)

If you want to keep your front sight post and be able to adjustable your gas pressure this is a great way to go.

Getting it straight up and down is a challenge but if you get the clamp taught you can play around with it until it's good. The finish is very good.

Les 13 flere anmeldelser fra brownells.com

1899 3349 4 NOK

Produktnr.: 452000148
J P ENTERPRISES LOW PROFILE ADJUSTABLE GAS BLACK .750" BORE, BLACK SS
Produsentnr.: JPGS-5B 812872021478 Erstatter den originale forskjeftet/gassblokken og lar deg justere gassystemet for jevnere sykling og drift. Spesielt kritisk på match- og varmintgeværer når man skyter både fabrikk- og spesialladet ammunisjon. En enkel sett-skru gir deg kontroll over gassflyten, slik at du kan tilpasse innstillingen for hver ladning. Sekskantet hodeskruer klemmer blokken sikkert til løpet. Installasjonsinstruksjoner inkludert. Lavprofilmodellen passer under forskjeftet på .750" løp. Robust, helstålkonstruksjon motstår gasserosjon og hjelper med å opprettholde geværets vektfordeling. JPGS-5B og JPGS-5S Lavprofilmodeller har en slankere profil for å redusere vekt og for å passe under et bredere utvalg av forskjeft.

1899 NOK 4 kr 1 899,00 *

Leveringstid ca. 14-21 dager.
4 stk. på lageret i USA

Spesifikasjoner: Inside Diameter: .750 Make: AR-15 Material: Black Stainless Steel Style: Adjustable, Low-Profile, Clamp

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Top takeaways

Justerbar gassblokk som erstatter den originale og gir kontroll over gassflyten for jevnere sykling og drift, spesielt viktig for match- og varmintgeværer.
Lavprofilmodell som passer under forskjeftet på .750" løp, laget av robust, svart rustfritt stål for vektfordeling og motstand mot gasserosjon.
Enkel installasjon med inkluderte instruksjoner og sekskantede hodeskruer for sikker festing til løpet.

Attributes

Inside Diameter: .750 Make: AR-15 Material: Black Stainless Steel Style: Adjustable,Low-Profile,Clamp Leveringsvekt: 0,197kg Frakthøyde: 51mm Fraktbredde: 140mm Fraktlengde: 184mm UPC : 812872021478

Elementdetaljer

Made in USA
US eksport klassifisering: 0A501.x

Produktnr.: 452000065
J P ENTERPRISES A2-STYLE GAS BLOCK
Produsentnr.: JPGS-2FS 812872021454 Erstatter den originale forskjeftet/gassblokken og lar deg justere gassystemet for jevnere sykling og drift. Spesielt kritisk på match- og varmintgeværer når man skyter både fabrikk- og spesialladet ammunisjon. En enkel sett-skru gir deg kontroll over gassflyten, slik at du kan tilpasse innstillingen for hver ladning. Sekskantet hodeskruer klemmer blokken sikkert til løpet. Installasjonsinstruksjoner inkludert. Lavprofilmodellen passer under forskjeftet på .750" løp. Robust, helstålkonstruksjon motstår gasserosjon og hjelper med å opprettholde geværets vektfordeling. JPGS-5B og JPGS-5S Lavprofilmodeller har en slankere profil for å redusere vekt og for å passe under et bredere utvalg av forskjeft.

3349 NOK 0 kr 3 349,00 *

Restordre. Sendes når kommer til lager. Leveringstid ca 4-12 uker fra USA lager.

Spesifikasjoner: Inside Diameter: .750 Make: AR-15 Material: Stainless Steel Style: Adjustable, Clamp

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Produktnr.: 452000122
J P ENTERPRISES AR ADJUSTABLE GAS SYSTEM, LOW PROFILE .936" BORE, ALUMINUM
Produsentnr.: JPGS-8 812872021492 Erstatter den originale forskjeftet/gassblokken og lar deg justere gassystemet for jevnere sykling og drift. Spesielt kritisk på match- og varmintgeværer når man skyter både fabrikk- og spesialladet ammunisjon. En enkel sett-skru gir deg kontroll over gassflyten, slik at du kan tilpasse innstillingen for hver ladning. Sekskantet hodeskruer klemmer blokken sikkert til løpet. Installasjonsinstruksjoner inkludert. Lavprofilmodellen passer under forskjeftet på .750" løp. Robust, helstålkonstruksjon motstår gasserosjon og hjelper med å opprettholde geværets vektfordeling. JPGS-5B og JPGS-5S Lavprofilmodeller har en slankere profil for å redusere vekt og for å passe under et bredere utvalg av forskjeft.

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Spesifikasjoner: Inside Diameter: .936 Make: AR-15 Material: Aluminum Style: Adjustable

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Produktnr.: 452000177
J P ENTERPRISES LOW PROFILE ADJUSTABLE GAS BLOCK .750 STAINLESS STEEL
Produsentnr.: JPGS-5S 812872021485 Erstatter den originale forskjeftet/gassblokken og lar deg justere gassystemet for jevnere sykling og drift. Spesielt kritisk på match- og varmintgeværer når man skyter både fabrikk- og spesialladet ammunisjon. En enkel sett-skru gir deg kontroll over gassflyten, slik at du kan tilpasse innstillingen for hver ladning. Sekskantet hodeskruer klemmer blokken sikkert til løpet. Installasjonsinstruksjoner inkludert. Lavprofilmodellen passer under forskjeftet på .750" løp. Robust, helstålkonstruksjon motstår gasserosjon og hjelper med å opprettholde geværets vektfordeling. JPGS-5B og JPGS-5S Lavprofilmodeller har en slankere profil for å redusere vekt og for å passe under et bredere utvalg av forskjeft.

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Ikke tilgjengelig.

Spesifikasjoner: Inside Diameter: .750 Make: AR-15 Material: Stainless Steel Style: Adjustable

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Oppgrader ditt AR-15 med J P Enterprises justerbare gassblokk. 🌟 Lavprofil, robust stål, perfekt for match- og varmintgeværer!

Pressure Adjustable For Smoother Cycling

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Trykkjusterbar for jevnere sykling

Mer...

Kundevurderinger for J P ENTERPRISES LOW PROFILE ADJUSTABLE GAS BLACK .750" BORE, BLACK SS

Antall vurderinger: 13
Fra brownells.com: 13
Gjennomsnittsvurdering: 3,8

Solid (04.05.2015)

Everyone needs one of these. (08.09.2012)

Great JP Product, Perfect Fit (10.11.2015)

Makes for a much smoother AR (20.12.2015)

Outstanding Gas Block!! (05.02.2016)

The best adjustable gas block out there! (06.03.2016)

Gas tube milled 1/4 inch to short (13.03.2016)

Totally lacking in full quality control. (17.03.2016)

NO QC (22.03.2016)

Gas tube hole is not milled deep enough on this gas block. Tried it with 3 gas tubes and it does not come close to being deep enough. Not sure how this slipped through.

Slight issue, but easy fix. (05.08.2016)