User Panel
[Last Edit: fadedsun]
[#1]
Originally Posted By djkest: Optics Planet has a good deal on these right now: https://www.opticsplanet.com/aero-precision-ar15-assembled-upper-receiver-no-forward-assist.html?_iv_code=29D-UPR-AR15AURNFA-APAR610401AC View Quote That’s where I bought it from. I don’t know if I’ll actually receive it. Who knows. Any good options for a hand guard? |
|
connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
[Last Edit: djkest]
[#2]
Originally Posted By fadedsun: That’s where I bought it from. I don’t know if I’ll actually receive it. Who knows. Any good options for a hand guard? View Quote The Fostec rails are the lightest right now, especially the 10" "tungsten" one which tends to be a bit longer. I'd love to get my hands on one and take pictures of / weigh the nut. The list on page 1 is pretty up-to-date. Midwest Industries Ultra Lightweight $$ V7 Systems Hyperlite $$$ Aero Precision Atlas-One M-Lok |
|
Proud millennial.
|
[Last Edit: RangeToy]
[#3]
Originally Posted By djkest: The Fostec rails are the lightest right now, especially the 10" "tungsten" one which tends to be a bit longer. I'd love to get my hands on one and take pictures of / weigh the nut. The list on page 1 is pretty up-to-date. Midwest Industries Ultra Lightweight $$ V7 Systems Hyperlite $$$ Aero Precision Atlas-One M-Lok View Quote I'm running the 12.6" MI rail on the 14.5" pin & weld build I recently finished. No complaints. Thinking about trying the Odin Works O2 lite rail on the next build, but now that I see the Fostec handguard, I might have to go that route |
|
|
[Last Edit: fadedsun]
[#4]
Originally Posted By djkest: The Fostec rails are the lightest right now, especially the 10" "tungsten" one which tends to be a bit longer. I'd love to get my hands on one and take pictures of / weigh the nut. The list on page 1 is pretty up-to-date. Midwest Industries Ultra Lightweight $$ V7 Systems Hyperlite $$$ Aero Precision Atlas-One M-Lok View Quote Something else to add to the list: Samson low profile gas block-.61 oz That's a MFG supplied number but when mine arrives I'll get you a user supplied number with a photo to back it up. It's the Lightest one I have seen so far and about a tenth of an ounce lighter than the V7. https://www.mountsplus.com/625-low-profile-gas-block-samson-lightweight-ar15-gas-block.html The Aero atlas one seems to be the best combination of price, length, and weight. about 13 ounces for the complete setup. I'll go with that. What is the measurement used for weighing a rifle? Ready to shoot with optics, BUIS? no optic/BUIS? |
|
connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
[#5]
Personally I feel the base weight measurement should be with no accessories. No sights, sling,mag etc. that way we can compare weights without figuring out the difference in the add ons.
|
|
|
[#6]
Originally Posted By fadedsun: Something else to add to the list: Samson low profile gas block-.61 oz That's a MFG supplied number but when mine arrives I'll get you a user supplied number with a photo to back it up. It's the Lightest one I have seen so far and about a tenth of an ounce lighter than the V7. https://www.mountsplus.com/625-low-profile-gas-block-samson-lightweight-ar15-gas-block.html The Aero atlas one seems to be the best combination of price, length, and weight. about 13 ounces for the complete setup. I'll go with that. What is the measurement used for weighing a rifle? Ready to shoot with optics, BUIS? no optic/BUIS? View Quote The Under 6 thread has specific requirements in the OP. |
|
Death to quislings.
|
[Last Edit: Slimjim]
[#7]
|
|
|
[Last Edit: larrys]
[#8]
FWIW the Smoke Composite 10” handguard is 5.243 oz if you ask them to give you the lightened version. That is a confirmed U weight.
|
|
|
[Last Edit: tortilla-flats]
[#9]
Originally Posted By fadedsun: That's where I bought it from. I don't know if I'll actually receive it. Who knows. Any good options for a hand guard? View Quote I've bought from Optics Planet lately without an issue. But I make sure it's clear on their website its in stock. Also, free shipping is sloowww. |
|
Tom Sawyer.
|
[#10]
|
|
connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
[#11]
|
|
connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
[#12]
Originally Posted By fadedsun: https://www.ar15.com/media/mediaFiles/51435/IMG_2672_jpeg-3181803.JPG https://www.ar15.com/media/mediaFiles/51435/IMG_2690_jpeg-3181804.JPG .6 oz https://www.ar15.com/media/mediaFiles/51435/IMG_2691_jpeg-3181805.JPG 18 grams View Quote That part is so light that your scale lacks the precision to measure it properly. Still, that's good news. I'd love to get my hands on the KAK mini-milspec and the LWRC UCIW buffer tubes to see how much they weigh. Might be a good option for some folks, only issue is that they have proprietary buffer systems to deal with the shorter length. |
|
Proud millennial.
|
[#13]
Originally Posted By djkest: That part is so light that your scale lacks the precision to measure it properly. Still, that's good news. I'd love to get my hands on the KAK mini-milspec and the LWRC UCIW buffer tubes to see how much they weigh. Might be a good option for some folks, only issue is that they have proprietary buffer systems to deal with the shorter length. View Quote View All Quotes View All Quotes Originally Posted By djkest: That part is so light that your scale lacks the precision to measure it properly. Still, that's good news. I'd love to get my hands on the KAK mini-milspec and the LWRC UCIW buffer tubes to see how much they weigh. Might be a good option for some folks, only issue is that they have proprietary buffer systems to deal with the shorter length. Lose more weight taking the weights out of the buffer itself & turning down the gas. One of the least expensive routes to lose weight on an AR, albeit & the expense of some reliability, some of which can be mitigated by turning the gas back up as needed. |
|
Death to quislings.
|
[#14]
New weights
ALG ACT Trigger 72 grams / 2.5 oz Geiselle SD-C Trigger 63 grams / 2.2 oz Not a cheap way to lose 9 grams |
|
Proud millennial.
|
[#15]
Looks like Aero Precision may be discontinuing their "No-FA" upper receivers, which sucks because they were one of the few companies that still made them. I just picked up one from Primary Arms while they are still around.
|
|
Proud millennial.
|
[#16]
Originally Posted By djkest: Looks like Aero Precision may be discontinuing their "No-FA" upper receivers, which sucks because they were one of the few companies that still made them. I just picked up one from Primary Arms while they are still around. View Quote Ouch. Those uppers are nice. Source? |
|
connoisseur of fine Soviet and European armored vehicles
Let's go Brandon CINCAFUGD |
[#17]
Originally Posted By fadedsun: Ouch. Those uppers are nice. Source? View Quote https://www.aeroprecisionusa.com/ar15-assembled-upper-receiver-no-fa Marked as discontinued. |
|
Proud millennial.
|
[#18]
Originally Posted By djkest: That part is so light that your scale lacks the precision to measure it properly. Still, that's good news. I'd love to get my hands on the KAK mini-milspec and the LWRC UCIW buffer tubes to see how much they weigh. Might be a good option for some folks, only issue is that they have proprietary buffer systems to deal with the shorter length. View Quote View All Quotes View All Quotes Originally Posted By djkest: That part is so light that your scale lacks the precision to measure it properly. Still, that's good news. I'd love to get my hands on the KAK mini-milspec and the LWRC UCIW buffer tubes to see how much they weigh. Might be a good option for some folks, only issue is that they have proprietary buffer systems to deal with the shorter length. It's easy to test. Weigh a nickel, should be 5 grams, add another nickel, 10 grams... |
|
|
[Last Edit: C_1]
[#19]
Originally Posted By djkest: That part is so light that your scale lacks the precision to measure it properly. Still, that's good news. I'd love to get my hands on the KAK mini-milspec and the LWRC UCIW buffer tubes to see how much they weigh. Might be a good option for some folks, only issue is that they have proprietary buffer systems to deal with the shorter length. View Quote I recently emailed KAK and they said their KAK Mini Mil Spec Buffer Tube Kit with carbine buffer weighs 8.3 oz. And IIRC, I read somewhere that the LWRC UICW buffer tube kit (w/o stock) weighs 9.1 oz. |
|
|
[Last Edit: djkest]
[#20]
Originally Posted By C_1: I recently emailed KAK and they said their KAK Mini Mil Spec Buffer Tube Kit with carbine buffer weighs 8.3 oz. And IIRC, I read somewhere that the LWRC UICW buffer tube kit (w/o stock) weighs 9.1 oz. View Quote That sounds pretty good. Buffer Tube Buffer Castle Nut End Plate Buffer Spring I recently received another Aero Precision No FA upper and it was 0.1 oz less than my last one. 6.4 oz. I suspect the cerakote versions are slightly heavier due to coating thickness. |
|
Proud millennial.
|
[#21]
|
|
Proud millennial.
|
[Last Edit: djkest]
[#22]
Good news on the KAK Mini-Milspec.
MILSPEC Carbine system: Buffer: 3.0 Oz Spring: 1.9 Oz Buffer Tube: 3.9 Oz System weight: 8.8 Oz KAK Mini-Milspec: Buffer: 2.5 Spring: 1.4 Buffer Tube: 3.1 Oz System Weight: 7 Oz SO you can save 1.8 Oz for $60 by switching over to the KAK mini-milspec. The only big disadvantage is that you have less LOP, but that might not even be an issue for you. Parts seem to be good quality, maybe not "super premium" but still good milspec quality. |
|
Proud millennial.
|
[Last Edit: DevL]
[#23]
Originally Posted By C_1: I recently emailed KAK and they said their KAK Mini Mil Spec Buffer Tube Kit with carbine buffer weighs 8.3 oz. And IIRC, I read somewhere that the LWRC UICW buffer tube kit (w/o stock) weighs 9.1 oz. View Quote The LWRC buffer has tungsten weights in the buffer and weighs between the standard and H1 buffer. You could swap in steel weights if you want to cut some weight off the LWRC 2 weight buffer. The KAK is 1 weight buffer and gets length from the endcap. Personally, I prefer some rear weight to balance a rifle vs all out lightweight. It just handles better. And isn't the point of building an ultralight rifle supposed to be about handling? |
|
|
[#24]
Originally Posted By C_1: I recently emailed KAK and they said their KAK Mini Mil Spec Buffer Tube Kit with carbine buffer weighs 8.3 oz. And IIRC, I read somewhere that the LWRC UICW buffer tube kit (w/o stock) weighs 9.1 oz. View Quote But that includes castle nut and end plate I believe. |
|
|
[#25]
Originally Posted By DevL: The LWRC buffer has tungsten weights in the buffer and weighs between the standard and H1 buffer. You could swap in steel weights if you want to cut some weight off the LWRC 2 weight buffer. The KAK is 1 weight buffer and gets length from the endcap. Personally, I prefer some rear weight to balance a rifle vs all out lightweight. It just handles better. And isn't the point of building an ultralight rifle supposed to be about handling? View Quote View All Quotes View All Quotes Originally Posted By DevL: Originally Posted By C_1: I recently emailed KAK and they said their KAK Mini Mil Spec Buffer Tube Kit with carbine buffer weighs 8.3 oz. And IIRC, I read somewhere that the LWRC UICW buffer tube kit (w/o stock) weighs 9.1 oz. The LWRC buffer has tungsten weights in the buffer and weighs between the standard and H1 buffer. You could swap in steel weights if you want to cut some weight off the LWRC 2 weight buffer. The KAK is 1 weight buffer and gets length from the endcap. Personally, I prefer some rear weight to balance a rifle vs all out lightweight. It just handles better. And isn't the point of building an ultralight rifle supposed to be about handling? You're thinking of "a balanced rifle". Balanced rifles are about handling. Ultra-lightweight rifles are extremely handy to carry around, sometimes at the sacrifice of handling & other qualities. Everything is a compromise - pick yours. |
|
Death to quislings.
|
[#26]
|
|
Proud millennial.
|
[#27]
KAK parts are a lot more expensive than:
1) Pull the weights from your existing buffer; 2) Turn down the gas. You will save some weight on the tube, buffer shell, & spring over standard carbine components. |
|
Death to quislings.
|
[Last Edit: J_taylor]
[#28]
Does anyone have a list of Lower reciever weights ? I'm building a lightweight Takedown AR. I'm thinking of using a H&R XM16E1 or a 601 Lower reciever.
Attached File |
|
|
[#29]
Originally Posted By J_taylor: Does anyone have a list of Lower reciever weights ? I'm building a lightweight Takedown AR. I'm thinking of using a H&R XM16E1 or a 601 Lower reciever. https://www.ar15.com/media/mediaFiles/548798/1000011620_jpg-3192932.JPG View Quote There's quite a few on the first page and in the spreadsheet. |
|
Proud millennial.
|
[#30]
Originally Posted By RangeToy: I'm running the 12.6" MI rail on the 14.5" pin & weld build I recently finished. No complaints. Thinking about trying the Odin Works O2 lite rail on the next build, but now that I see the Fostec handguard, I might have to go that route View Quote That's actually a great size combo. |
|
Proud millennial.
|
[#31]
Well look at this. I've been sorting through some stuff and decided to check out some things...
Lower: H&R M16A1 factory complete: 1lb, 13.75oz Upper: Colt 6720* complete: 3lbs, 6.50oz TOTAL: 5lbs, 4.25oz Not a bad start for just slapping together an upper & lower I had laying around. (no sights/optics) * Upper config... -- Colt M4 upper receiver w/Colt FA BCG & CH -- Colt 6720 16" pencil barrel w/A1 FH; ADCO shaved the FSB -- MI 10.5" Ultralightweight rail |
|
Tom Sawyer.
|
[#32]
Well I finally have the first lightweight part I thoroughly dislike.
V Seven titanium takedown pins First off, they are very shiny/glossy. And while I appreciate the tight fit, I can't pull the takedown pin due to how slick the sides are. The Pivot pin is fine. This is one example of how saving a gram or two unfortunately is not worth the tradeoffs. This can't be any sort of "SHTF" type weapon if I can't even pull the takedown pin without a tool. Maybe I could try gently sanding down the pin and the sides of the "button" as well. |
|
Proud millennial.
|
[#33]
Originally Posted By djkest: Well I finally have the first lightweight part I thoroughly dislike. V Seven titanium takedown pins First off, they are very shiny/glossy. And while I appreciate the tight fit, I can't pull the takedown pin due to how slick the sides are. The Pivot pin is fine. This is one example of how saving a gram or two unfortunately is not worth the tradeoffs. This can't be any sort of "SHTF" type weapon if I can't even pull the takedown pin without a tool. Maybe I could try gently sanding down the pin and the sides of the "button" as well. View Quote Uh - have you tried pushing it from the other side with a bullet? Do we have the weights of the GWACS aluminum takedown pins w/ the integral ball bearing retainers? |
|
Death to quislings.
|
[#34]
|
|
Proud millennial.
|
[#35]
Originally Posted By djkest: I believe those only fit CAV-15 lowers since they are thicker. View Quote View All Quotes View All Quotes Originally Posted By djkest: Originally Posted By backbencher: Uh - have you tried pushing it from the other side with a bullet? Do we have the weights of the GWACS aluminum takedown pins w/ the integral ball bearing retainers? I believe those only fit CAV-15 lowers since they are thicker. Nope, they work fine. Stick out a little bit. |
|
Death to quislings.
|
[#36]
|
|
Tom Sawyer.
|
[#37]
Originally Posted By tortilla-flats: Here's a rabbit hole of lightweight furniture. https://www.smokecomposites.com/ View Quote I've used a good bit of SC's products, and have written a few reviews on ammoland.com. Short version, it's good stuff. |
|
|
[#38]
I’ve been very impressed with the Smoke products. Both of my LW builds have Smoke furniture.
|
|
|
[#39]
|
|
|
[#40]
Looks good!
|
|
|
[#41]
Originally Posted By Slimjim: https://www.ar15.com/media/mediaFiles/49519/andersonlw_jpg-3215961.JPG Got the anderson set Cerakoted today. View Quote |
|
|
[#42]
Originally Posted By djkest: https://www.aeroprecisionusa.com/ar15-assembled-upper-receiver-no-fa Marked as discontinued. View Quote View All Quotes View All Quotes |
|
Tom Sawyer.
|
[#43]
Originally Posted By djkest: Good news on the KAK Mini-Milspec. MILSPEC Carbine system: Buffer: 3.0 Oz Spring: 1.9 Oz Buffer Tube: 3.9 Oz System weight: 8.8 Oz KAK Mini-Milspec: Buffer: 2.5 Spring: 1.4 Buffer Tube: 3.1 Oz System Weight: 7 Oz SO you can save 1.8 Oz for $60 by switching over to the KAK mini-milspec. The only big disadvantage is that you have less LOP, but that might not even be an issue for you. Parts seem to be good quality, maybe not "super premium" but still good milspec quality. View Quote I came across this Mini-Milspec setup researching an N-23 build. |
|
Tom Sawyer.
|
[#44]
|
|
Proud millennial.
|
[#45]
Unbranded AR advertises a carbon fiber lower at 3.7oz. Never heard of them before.
https://www.unbrandedar.com/product/uar-carbon-fiber-ar-15-lower-receiver/ |
|
Tom Sawyer.
|
[Last Edit: backbencher]
[#46]
Originally Posted By tortilla-flats: Unbranded AR advertises a carbon fiber lower at 3.7oz. Never heard of them before. https://www.unbrandedar.com/product/uar-carbon-fiber-ar-15-lower-receiver/ View Quote It's just another polymer lower but they're using carbon fibers instead of nylon to get the weight down. Problem is that unless it's a .22 LR, you'll be wanting a thumbhole stock to reinforce the buffer tube boss, and then it's not so light. |
|
Death to quislings.
|
[#47]
Interest has slowed down, but keeping this thread alive.
|
|
Proud millennial.
|
[#48]
|
|
|
[#49]
I've not seen that but I do have a Javelin Lite bipod that I'm impressed with. It doesn't fold either, but the bipod is attached to the mount with a magnet so attaching/detaching is simple and solid. 4.8oz without mount.
|
|
Tom Sawyer.
"If The Rules bought us to this, what use are they?" |
[#50]
I was looking at the Javelin for a bit, but I decided to give the Assaulter a try. Just ordered it a little bit of go, so I'll give you guys an impression of it once I get it.
|
|
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.