Type: Airsoft Rifle (AR).
Model: LM4 RIS PTR & LM4 KR7 PRT
Materials: Metal & plastic.
Weight: 6.4 & 5.6 pounds.
Barrel: Type 3 hop-up.
Propulsion: GBB - Gas Blowback.
Action: Semi-full auto selectable SAO.
Ammunition Type: Airsoft 6mm Plastic BB's.
Ammunition Capacity: 40 rounds.
Trigger Pull: The trigger pull on the KWA LM4 RIS PTR and KWA LM4 KR7 PTR Full Metal GBB Airsoft Rifles is exactly what you would expect on an AR style rifle. You are required to pull the charging handle back for the first shot which draws the bolt back and chambers a round. The Single action trigger has very little take up and a light crisp release. Of course if you select full auto mode all you need to do is hold down the trigger until the magazine is empty!
Accuracy: So far I have not field tested either the KWA LM4 RIS PTR and KWA LM4 KR7 PTR Full Metal GBB Airsoft Rifles but I did throw some green gas in one of the mags and fires off a bunch of semi and full auto shots in my Sea Can Airgun shooting range. You can expect a ton of felt blowback recoil and both semi and full auto modes performed perfectly for me with no problems unloading a full 40 rounds magazine and no slow down in the blowback action.
Build Quality: The KWA LM4 RIS PTR and KWA LM4 KR7 PTR Full Metal GBB Airsoft Rifles are about as good as it gets in terms of build quality. They both have pretty much the same aluminum metal receivers and reenforced steal bolts. Fit and finishes is excellent everything just looks and feels great on these high end KWA Airsoft rifles.
Realism: The PTR in the name stands for “Professional Training Rifle” and the KWA LM4 RIS PTR and KWA LM4 KR7 PTR Full Metal GBB Airsoft Rifles not only look the part but operate as close as you are going to get to the real steal version in an Airsoft rifle. You can even interchange the stock, grips, trigger guard with MilSPec components and the same goes for the rails, all MilSpec ready. I want to mention the blowback recoil again because it is truly awesome on these rifles!
KWA brands is one of the best out there.
Super heavy blowback action really bucks.
Really well built mostly aluminum and steel components.
Fully customizable MilSpec design throughout.
Amazingly realistic perfect for training.
Gas Magazine performs really well easily getting through the 40 rounds.
Type 3 Hop-up for extended range shooting.
Fully Field Strippable.
GBB system has more limitation compared to an AEG, less rounds, not goof in cold weather.
Not the cheapest Airsoft rifles out there but worth every penny.
Hard to keep in stock.
I know most go-to Airsoft rifles for game play are going to be an AEG since they are going to have a lot more rounds per mag and more consistent performance over a Gas Blowback Airsoft rifle. That said the KWA LM4 RIS PTR and KWA LM4 KR7 PTR Full Metal GBB Airsoft Rifles really make you want to reconsider this choice and try and figure out if perhaps you could use a Gas Blowback Airsoft Rifle on the field? Sure you will need a lot of extra magazines but man is it ever fun feeling that blowback action on your shoulder and experiencing a more true to life experience shooting the KWA LM4 RIS PTR and KWA LM4 KR7 PTR Full Metal GBB Airsoft Rifles. If you want the most realistic training Airsoft rifles then it would be hard to find a better option out there.